Category: HEALTH

Not such good news for butter lovers like myself: seesawing research on how healthy or unhealthy butter might be received a firm push from a recent Harvard study published in JAMA Internal Medicine. Drawing on decades of data gathered through long-term observational studies, the researchers investigated whether butter and plant oils affect mortality.

One basic takeaway? “A higher intake of butter increases mortality risk, while a higher intake of plant-based oil will lower it,” says Yu Zhang, lead author of the study. And importantly, choosing to substitute certain plant oils for butter might help people live longer.

What did the study find about butter versus plant oils?

The researchers divided participants into four groups based on how much butter and plant oils they reported using on dietary questionnaires. They compared deaths among those consuming the highest amounts of butter or plant oils with those consuming the least, over a period of up to 33 years.

Plant oils won out handily. A 15% higher risk of death was seen among those who ate the most butter compared with those who ate the least. A 16% lower risk of death was seen among those who consumed the highest amount of plant oils compared with those who consumed the least.

Higher butter intake also raised risk for cancer deaths. And higher plant oil intake cut the risk for dying from cancer or cardiovascular disease like stroke or heart attack.

While the study looked at five plant oils, only soybean, canola, and olive oil were linked with survival benefits. Swapping out a small amount of butter in the daily diet — about 10 grams, which is slightly less than a tablespoon — for an equivalent amount of those plant-based oils was linked with fewer total deaths and fewer cancer deaths, according to a modeling analysis.

How could substituting plant oils for butter improve health?

“Butter has almost no essential fatty acids and a modest amount of trans fat — the worst type of fat for cardiovascular disease,” Dr. Walter C. Willett, professor of epidemiology and nutrition at the Harvard T.H. Chan School of Public Health and professor of medicine at Harvard Medical School, noted by email.

By contrast, the plant oils highlighted in this study are rich in antioxidants, essential fatty acids, and unsaturated fats, which research has linked to healthier levels of cholesterol and triglycerides and lower insulin resistance.

Especially when substituted for a saturated fat like butter, plant oils also may help lower chronic inflammation within the body. Making such substitutions aligns with American Heart Association recommendations and current Dietary Guidelines for Americans for healthful eating that lower risk for chronic disease.

And for the butter lovers? “A little butter occasionally for its flavor would not be a problem,” says Dr. Willett. “But for better health, use liquid plant oils whenever possible instead of butter for cooking and at the table.” Try sampling a variety of plant oils, like different olive oils, mustard oil, and sesame oil, to learn which ones you enjoy for different purposes, he suggests. Additionally, a blend or mix of butter with oils — or sometimes a bit of butter on its own — can satisfy taste buds.

What about study limitations and strengths?

The study crunched data collected through a questionnaire answered every four years by more than 221,000 adults participating in the Nurses’ Health Study, Nurses’ Health Study II, and Health Professionals Follow-Up Study. As is true of all observational studies, this type of research can’t prove cause and effect, although it adds to the body of evidence. Because most participants were white health care professionals, the findings may not apply to a wider population.

The researchers adjusted for many variables that can affect health, including age, physical activity, smoking status, and family history of illnesses like cancer and diabetes. The size of the study, the length of follow-up, and multiple adjustments like these are all strengths.

About the Author

Francesca Coltrera, Editor, Harvard Health Blog

Francesca Coltrera is editor of the Harvard Health Blog, and associate editor of multimedia content for Harvard Health Publishing. She is an award-winning medical writer and co-author of Living Through Breast Cancer and The Breast Cancer … See Full Bio View all posts by Francesca Coltrera

About the Reviewer

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Howard LeWine is a practicing internist at Brigham and Women’s Hospital in Boston, Chief Medical Editor at Harvard Health Publishing, and editor in chief of Harvard Men’s Health Watch. See Full Bio View all posts by Howard E. LeWine, MD Share

Prostatitis, or inflammation of the prostate, is more common than you might think — it accounts for roughly two million doctor visits every year. The troubling symptoms include burning or painful urination, an urgent need to go (especially at night), painful ejaculations, and also pain in the lower back and perineum (the space between the scrotum and anus).

Prostatitis overview

There are four general categories of prostatitis:

Acute bacterial prostatitis comes on suddenly and is often caused by infections with bacteria such as Escherichia coli that normally live in the colon. Men can suffer muscle aches, fever, and blood in semen or urine, as well as urogenital symptoms. Acute inflammation can cause the prostate to swell and block urinary outflow from the bladder. A complete blockage is a medical emergency that requires immediate treatment. Depending on symptom severity, hospitalization may be necessary.

Chronic bacterial prostatitis results from milder infections that sometimes linger for months. It occurs more often in older men and the symptoms typically wax and wane in severity, sometimes becoming barely noticeable.

Chronic nonbacterial prostatitis, also called chronic pelvic pain syndrome (CPPS), is the most common type. CPPS can be triggered by stress, urinary tract infections, or physical trauma causing inflammation or nerve damage in the genitourinary area. In some men, the cause is never identified. CPPS can affect the entire pelvic floor, meaning all the muscles, nerves, and tissues that support organs involved in bowel, bladder, and sexual functioning.

Asymptomatic inflammatory prostatitis is diagnosed when doctors detect white blood cells in prostate tissues or secretions in men being evaluated for other conditions. It generally requires no treatment.

Both acute and chronic bacterial prostatitis can cause blood levels of prostate-specific antigen (PSA) to spike. This can be alarming, since high PSA is also indicative of prostate cancer. But if a man has prostatitis, then that condition — and not prostate cancer — may very well be the reason for the rise in PSA.

Prostatitis treatments

Fortunately, research advances are leading to some encouraging developments for men suffering from this condition.

Antibiotics called fluoroquinolones are effective treatments for acute and chronic bacterial prostatitis. A four-to six-week course of the drugs typically does the trick. However, bacterial resistance to fluoroquinolones is a growing problem. An older drug called fosfomycin can help if other drugs stop working. PSA levels will decline with treatment, although that process may take three to six months.

CPPS is treated in other ways. Since it is not caused by a bacterial infection, CPPS will not respond to antibiotics. Medical treatments include nonsteroidal anti-inflammatory drugs such as ibuprofen, alpha blockers including tamsulosin (Flomax) that loosen tight muscles in the prostate and bladder neck, and drugs called PDEF inhibitors such as tadalafil (Cialis) that improve blood flow to the prostate.

Specialized types of physical therapy can provide some relief. One method called trigger point therapy, for instance, targets tender areas in muscles that tighten up and spasm. With another method called myofascial release, physical therapists can reduce tension in the connective tissues surrounding muscles and organs. Men should avoid Kegel exercises, however, which can tighten the pelvic floor and cause worsening symptoms.

Acupuncture has shown promise in clinical trials. One study published in 2023 showed significant improvements in CPPS symptoms lasting up to six months after the acupuncture treatments were finished. Mounting evidence suggest that CPPS should be treated with holistic strategies that also consider psychological factors.

Men with CPPS often suffer from depression, anxiety, and other mental health issues that can exacerbate pain perception. Techniques such as mindfulness and cognitive behavioral therapy for CPPS can help CPPS sufferers develop effective coping strategies.

Comment

“An accurate diagnosis is important given differences in how each of the four categories of prostatitis is treated,” said Dr. Boris Gershman, a urologist at Beth Israel Deaconess Medical Center and assistant professor of surgery at Harvard Medical School. PSA should also be retested after treating bacterial forms of prostatitis, Dr. Gershman added, to ensure that the levels go back to normal. If the PSA stays elevated after antibiotic treatment, or if abnormal levels are detected in men with nonbacterial prostatitis, then the PSA “should be evaluated in accordance with standard diagnostic approaches,” Dr. Gershman said.

About the Author

C.W. Schmidt, Editor, Harvard Medical School Annual Report on Prostate Diseases

C.W. Schmidt is an award-winning freelance science writer based in Portland, Maine. In addition to writing for Harvard Health Publishing, he has written for Science magazine, the Journal of the National Cancer Institute, Environmental Health Perspectives, … See Full Bio View all posts by C.W. Schmidt

About the Reviewer

Marc B. Garnick, MD, Editor in Chief, Harvard Medical School Annual Report on Prostate Diseases; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Marc B. Garnick is an internationally renowned expert in medical oncology and urologic cancer. A clinical professor of medicine at Harvard Medical School, he also maintains an active clinical practice at Beth Israel Deaconess Medical … See Full Bio View all posts by Marc B. Garnick, MD Share

By the time boys are 8 or 10, they’re steeped in Marvel action heroes with bulging, oversized muscles and rock-hard abs. By adolescence, they’re deluged with social media streams of bulked-up male bodies.

The underlying messages about power and worth prompt many boys to worry and wonder about how to measure up. Sometimes, negative thoughts and concerns even interfere with daily life, a mental health issue known body dysmorphic disorder, or body dysmorphia. The most common form of this in boys is muscle dysmorphia.

What is muscle dysmorphia?

Muscle dysmorphia is marked by preoccupation with a muscular and lean physique. While the more extreme behaviors that define this disorder appear only in a small percentage of boys and young men, it may color the mindset of many more.

Nearly a quarter of boys and young men engage in some type of muscle-building behaviors. “About 60% of young boys in the United States mention changing their diet to become more muscular,” says Dr. Gabriela Vargas, director of the Young Men’s Health website at Boston Children’s Hospital. “While that may not meet the diagnostic criteria of muscle dysmorphia disorder, it’s impacting a lot of young men.”

“There’s a social norm that equates muscularity with masculinity,” Dr. Vargas adds. “Even Halloween costumes for 4- and 5-year-old boys now have padding for six-pack abs. There’s constant messaging that this is what their bodies should look like.”

Does body dysmorphic disorder differ in boys and girls?

Long believed to be the domain of girls, body dysmorphia can take the form of eating disorders such as anorexia or bulimia. Technically, muscle dysmorphia is not an eating disorder. But it is far more pervasive in males — and insidious.

“The common notion is that body dysmorphia just affects girls and isn’t a male issue,” Dr. Vargas says. “Because of that, these unhealthy behaviors in boys often go overlooked.”

What are the signs of body dysmorphia in boys?

Parents may have a tough time discerning whether their son is merely being a teen or veering into dangerous territory. Dr. Vargas advises parents to look for these red flags:

• Marked change in physical routines, such as going from working out once a day to spending hours working out every day.
• Following regimented workouts or meals, including limiting the foods they’re eating or concentrating heavily on high-protein options.
• Disrupting normal activities, such as spending time with friends, to work out instead.
• Obsessively taking photos of their muscles or abdomen to track “improvement.”
• Weighing himself multiple times a day.
• Dressing to highlight a more muscular physique, or wearing baggier clothes to hide their physique because they don’t think it’s good enough.

“Nearly everyone has been on a diet,” Dr. Vargas says. “The difference with this is persistence — they don’t just try it for a week and then decide it’s not for them. These boys are doing this for weeks to months, and they’re not flexible in changing their behaviors.”

What are the health dangers of muscle dysmorphia in boys?

Extreme behaviors can pose physical and mental health risks.

For example, unregulated protein powders and supplements boys turn to in hopes of quickly bulking up muscles may be adulterated with stimulants or even anabolic steroids. “With that comes an increased risk of stroke, heart palpitations, high blood pressure, and liver injury,” notes Dr. Vargas.

Some boys also attempt to gain muscle through a “bulk and cut” regimen, with periods of rapid weight gain followed by periods of extreme calorie limitation. This can affect long-term muscle and bone development and lead to irregular heartbeat and lower testosterone levels.

“Even in a best-case scenario, eating too much protein can lead to a lot of intestinal distress, such as diarrhea, or to kidney injury, since our kidneys are not meant to filter out excessive amounts of protein,” Dr. Vargas says.

The psychological fallout can also be dramatic. Depression and suicidal thoughts are more common in people who are malnourished, which may occur when boys drastically cut calories or neglect entire food groups. Additionally, as they try to achieve unrealistic ideals, they may constantly feel like they’re not good enough.

How can parents encourage a healthy body image in boys?

These tips can help:

• Gather for family meals. Schedules can be tricky. Yet considerable research shows physical and mental health benefits flow from sitting down together for meals, including a greater likelihood of children being an appropriate weight for their body type.
• Don’t comment on body shape or size. “It’s a lot easier said than done, but this means your own body, your child’s, or others in the community,” says Dr. Vargas.
• Frame nutrition and exercise as meaningful for health. When you talk with your son about what you eat or your exercise routine, don’t tie hoped-for results to body shape or size.
• Communicate openly. “If your son says he wants to exercise more or increase his protein intake, ask why — for his overall health, or a specific body ideal?”
• Don’t buy protein supplements. It’s harder for boys to obtain them when parents won’t allow them in the house. “One alternative is to talk with your son’s primary care doctor or a dietitian, who can be a great resource on how to get protein through regular foods,” Dr. Vargas says.

About the Author

Maureen Salamon, Executive Editor, Harvard Women's Health Watch

Maureen Salamon is executive editor of Harvard Women’s Health Watch. She began her career as a newspaper reporter and later covered health and medicine for a wide variety of websites, magazines, and hospitals. Her work has … See Full Bio View all posts by Maureen Salamon

About the Reviewer

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Howard LeWine is a practicing internist at Brigham and Women’s Hospital in Boston, Chief Medical Editor at Harvard Health Publishing, and editor in chief of Harvard Men’s Health Watch. See Full Bio View all posts by Howard E. LeWine, MD Share

An F may mean failure in school, but the letter earns high marks in your diet. The two biggest dietary Fs — fiber and fermented foods — are top priorities to help maintain healthy digestion, and they potentially offer much more. How can you fit these nutrients into meals? Can this help your overall health as well as gut health?

Fiber, fermented foods, and the gut microbiome

The gut microbiome is a composed of bacteria, viruses, fungi, and other microorganisms living in the colon (large intestine). What you eat, the air you breathe, where you live, and many other factors affect the makeup of the gut microbiome. Some experts think of it as a hidden organ because it has a role in many important functions of the body — for example, helping the immune system function optimally, reducing chronic inflammation, keeping intestinal cells healthy, and providing some essential micronutrients that may not be included in a regular diet.

Your gut communicates with your brain through pathways in the gut-brain axis. Changes in the gut microbiome have been linked with mood and mental health disorders, such as depression and anxiety. However, it’s not yet clear that these changes directly cause these types of problems.

We do know that a healthy diet low in processed foods is key to a healthy gut microbiome. And increasing evidence suggests that fiber and fermented foods can play important parts here.

Fiber 101

Fiber’s main job is to make digestion smoother by softening and adding bulk to stool, making it pass quickly through the intestines.

But fiber has other benefits for your microbiome and overall health. A high-fiber diet helps keep body weight under control and lowers LDL (bad) cholesterol levels. Research has found that eating enough fiber reduces the risk of heart disease, type 2 diabetes, and some cancers.

What to know about fiber

There are two types of fiber: insoluble (which helps you feel full and encourages regular bowel movements) and soluble (which helps lower cholesterol and blood sugar). However, recent research suggests people should focus on the total amount of fiber in their diet, rather than type of fiber.

If you’re trying to add more foods with fiber to your diet, make sure you ease into new fiber-rich habits and drink plenty of water. Your digestive system must adapt slowly to avoid gas, bloating, diarrhea, and stomach cramps caused by eating too much too soon. Your body will gradually adjust to increasing fiber after a week or so.

How much fiber do you need?

The fiber formula is 14 grams for every 1,000 calories consumed. Your specific calorie intake can vary depending on your activity levels.

“But instead of tracking daily fiber, focus on adding more servings of fiber-rich foods to your diet,” says Eric Rimm, professor of epidemiology and nutrition at Harvard’s T.H. Chan School of Public Health.

Which foods are high in fiber?

Fruits, vegetables, legumes, nuts, seeds, and whole grains are all high in fiber. The Dietary Guidelines for Americans has a comprehensive list of fiber-rich foods and their calorie counts.

What about over-the-counter fiber supplements that come in capsules, powders that you mix with water, and chewable tablets? “If you have trouble eating enough fiber-rich foods, then these occasionally can be used, and there is no evidence they are harmful,” says Rimm. “But they should not serve as your primary source of dietary fiber.”

Fermented foods 101

Fermented foods contain both prebiotics — ingredients that create healthy changes in the microbiome — and beneficial live bacteria called probiotics. Both prebiotics and probiotics help maintain a healthy gut microbiome.

What to know about fermented foods

Besides helping with digestion and absorbing vital nutrients from food, a healthy gut supports your immune system to help fight infections and protect against inflammation. Some research suggests that certain probiotics help relieve symptoms of gut-related conditions like inflammatory bowel disease and irritable bowel syndrome, though not all experts agree with this.

Many foods that are fermented undergo lacto-fermentation, in which natural bacteria feed on the sugar and starch in the food, creating lactic acid. Not only does this process remove simple sugars, it creates various species of good bacteria, such as Lactobacillus or Bifidobacterium. (Keep in mind that some foods undergo steps that remove probiotics and other healthful microbes, as with beer or wine, or make them inactive, like baking and canning.)

The exact amounts and specific strains of bacteria in fermented foods vary depending on how they are made. In addition to probiotics, fermented foods may contain other valuable nutrients like enzymes, B vitamins, and omega-3 fatty acids.

How often should you eat fermented foods?

There is no recommended daily allowance for prebiotics or probiotics, so it is impossible to know precisely which fermented foods or quantities are best. The general guideline is to add more to your daily diet.

Which fermented foods should you choose?

Fermented foods have a range of tastes and textures because of the particular bacteria they produce during fermentation or that are added to foods. Yogurt is one of the most popular fermented foods (look for the words “live and active cultures” on the label). Still, many options are available if you are not a yogurt fan or want to expand your fermented choices. Kimchi, sauerkraut, kombucha, and pickles are a few examples.

As with fiber, probiotics are also marketed as over-the-counter supplements. However, like all dietary supplements, they do not require FDA approval, so there is no guarantee that the types of bacteria listed on a label can provide the promised benefits — or are even in the bottle. “Therefore, it is best to get your probiotics from fermented foods,” says Rimm.

To learn more about the value of fiber, fermented foods, and a healthy gut microbiome, listen to this episode of the Food, We Need to Talk podcast, “Understanding the Microbiome.”

About the Author

Matthew Solan, Executive Editor, Harvard Men's Health Watch

Matthew Solan is the executive editor of Harvard Men’s Health Watch. He previously served as executive editor for UCLA Health’s Healthy Years and as a contributor to Duke Medicine’s Health News and Weill Cornell Medical College’s … See Full Bio View all posts by Matthew Solan

About the Reviewer

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Howard LeWine is a practicing internist at Brigham and Women’s Hospital in Boston, Chief Medical Editor at Harvard Health Publishing, and editor in chief of Harvard Men’s Health Watch. See Full Bio View all posts by Howard E. LeWine, MD Share

ADHD, or attention deficit hyperactivity disorder, is the most common neurobehavioral disorder of childhood. It affects approximately 7% to 8% of all children and youth in the US. As the American Academy of Pediatrics (AAP) points out in their clinical practice guideline for ADHD, that’s more than the mental health system can handle, which means that pediatricians need to step up and help out.

So, if your child is having problems with attention, focus, hyperactivity, impulsivity, or some combination of those, and is at least 4 years old, your first step should be an appointment with your child’s primary care doctor.

What steps will your pediatrician take?

According to the AAP, here’s what your doctor should do:

Take a history. Your doctor should ask you lots of questions about what is going on. Be ready to give details and examples.

Ask you to fill out a questionnaire about your child. Your doctor should also give you a questionnaire to give to your child’s teacher or guidance counselor.

A diagnosis of ADHD is made only if a child has symptoms that are

• present in more than one setting: For most children, that would be both home and school. If symptoms are only present in one setting, it’s less likely to be ADHD and more likely to be related to that setting. For example, a child who only has problems at school may have a learning disability.
• causing a problem in both of those settings: If a child is active and/or easily distracted, but is getting good grades, isn’t causing problems in class, and has good relationships in school and at home, there is not a problem. It bears watching, but it could be just personality or temperament.

There are ADHD rating scales that have been studied and shown to be reliable, such as the Vanderbilt and the Conners assessments. These scales can be very helpful, not just in making diagnoses, but also in following the progress of a child over time.

Screen your child for other problems. There are problems that can mimic ADHD, such as learning disabilities, depression, or even hearing problems. Additionally, children who have ADHD can also have learning disabilities, depression, or substance use. It’s important to ask enough questions and get enough information to be sure.

Discussing treatment options for ADHD

If a diagnosis of ADHD is made, your pediatrician should discuss treatment options with you.

• For 4- and 5-year-olds: The best place to begin is really with parent training on managing behavior, and getting support in the classroom. Medications should only be considered in this age group if those interventions don’t help, and the child’s symptoms are causing significant problems.
• For 6- to 12-year-olds: Along with parent training and behavioral support, medications can be very helpful. Primary care providers can prescribe one of the FDA-approved medications for ADHD (stimulants, atomoxetine, guanfacine, or clonidine). In this age group, formal classroom support in the form of an Individualized Education Program (IEP) or a 504 plan should be in place.
• For 12- to 18-year-olds: The same school programs and behavioral health support should be in place. Medications can be helpful, but teens should be part of that decision process; shared decision-making is an important part of caring for teens, and for getting them ready to take on their own care when they become adults.

Follow-up care for a child with ADHD

Your pediatrician also should follow up with you and your child. Early on, there should be frequent visits while you figure out the diagnosis, as well as any other possible problems. And if medication is prescribed, frequent visits are needed initially as you figure out the best medication and dose and monitor for side effects.

After that, the frequency of the visits will depend on how things are going, but appointments should be regular and scheduled, not just made to respond to a problem. ADHD can be a lifelong problem, bringing different challenges at different times, and it’s important that you, your child, and your doctor meet regularly so that you can best meet those challenges.

Because together, you can.

Watch a video of Dr. Erica Lee discussing behavioral therapies to help children with ADHD.

About the Author

Claire McCarthy, MD, Senior Faculty Editor, Harvard Health Publishing

Claire McCarthy, MD, is a primary care pediatrician at Boston Children’s Hospital, and an assistant professor of pediatrics at Harvard Medical School. In addition to being a senior faculty editor for Harvard Health Publishing, Dr. McCarthy … See Full Bio View all posts by Claire McCarthy, MD Share

If you’ve been on TikTok lately, you know it’s hard to avoid countless influencers touting a concept called sleepmaxxing. Their posts provide tips and tricks to get longer, better, and more restorative sleep. And why not? Sleep is considered a pillar of good health and is related to everything from brain health to cardiovascular health, and even diabetes.

But what exactly is sleepmaxxing? And how likely is it to deliver on claims of amped-up energy, a boost to the immune system, reducing stress levels, and improving your mood?

What is sleepmaxxing?

Depending on which social media platform you happen to be looking at, the recommended strategies for maximizing sleep differ. Tips include:

• taping your mouth shut while sleeping
• not drinking anything during the two hours before bedtime
• a cold room temperature
• a dark bedroom
• using a white noise machine
• not setting a morning alarm
• showering one hour before bedtime
• eliminating caffeine
• eating kiwis before going to bed
• taking magnesium and melatonin
• using weighted blankets
• getting 30 minutes of sunlight every day
• meditating daily for 30 minutes.

Does any research support sleepmaxxing?

A thorough search through PubMed, PsycNet, and Google Scholar reveals zero results for the terms “sleepmaxx” and “sleepmaxxing.” But wait — this certainly doesn’t mean that some influencer-recommended strategies are not evidence-based, just that the concept of sleepmaxxing, as a defined package, has not been scientifically studied. But yes, some of the strategies — including one uncomfortable, though popular, choice — lack evidence.

Can mouth-taping improve your sleep?

TikTok users have claimed that taping your mouth while you sleep has benefits, such as reducing snoring and improving bad breath. A team from the department of otolaryngology at George Washington University was prompted by all of the social media buzz on the topic to review research on the impact of nocturnal mouth taping. Spoiler alert: the authors note that most TikTok mouth-taping claims aren’t supported by research.

If you do snore, it’s important to discuss this with your medical team. Even if taping your mouth reduces your snoring, it can’t effectively treat a potential underlying cause of the snoring, such as allergies, asthma, or sleep apnea.

Sleepmaxxing or basic sleep hygiene?

Many strategies recommended by sleepmaxxers are essentially what sleep experts prescribe as good sleep hygiene, which has plenty of research backing its value. Common components of sleep hygiene are decreasing caffeine and alcohol consumption, increasing physical activity, sleep timing, reducing evening light exposure, limiting daytime naps, and having a cool bedroom.

While tips like these help many people enjoy restful sleep, those who have an insomnia disorder will need more help, as described below.

Melatonin, early bedtime, weighted blankets, and — kiwi fruit?

Other strategies suggested by sleepmaxxers are based on limited scientific data. For example:

• Taking melatonin is recommended by the American Academy of Sleep Medicine to treat circadian rhythm disorders such as jet lag. But it’s not recommended for insufficient sleep, poor sleep quality, or difficulty with falling asleep or staying asleep.
• Is it healthier to be asleep by 10 p.m.? One video that garnered more than a million views claims it is. While it is important to maximize morning sunlight exposure and minimize evening light exposure to regulate circadian rhythms, there is such variability in how much sleep someone requires and individual chronotypes (not to mention varying personal and professional responsibilities!) that it is difficult to state there is an ideal bedtime for everyone.
• While intriguing research has been done on weighted blankets, there is no convincing evidence that they are truly effective for the general adult population.
• Overall, it’s important to be cautious about the impact of the placebo effect on how someone sleeps. An analysis of more than 30 studies showed that roughly 64% of the drug response for a sleep medication in insomnia patients could be due to the placebo effect. A key takeaway is that studies that are not randomized controlled trials — such as this small study on 24 people suggesting that kiwi fruit may improve sleep — should be interpreted with a grain of salt.

Could you have orthosomnia?

The expectation of flawless sleep, night in and night out, is an unrealistic goal. Orthosomnia is a term that describes an unhealthy pursuit of perfect sleep. The pressure to get perfect sleep is embedded in the sleepmaxxing culture.

With more and more people able to access daily data about their sleep and other health metrics through consumer wearables, even a person who is objectively sleeping well can become unnecessarily concerned with optimizing their sleep. While prioritizing restful sleep is commendable, setting perfection as your goal is problematic. Even good sleepers vary from night to night, experiencing less than desirable sleep a couple of times per week.

It is also noteworthy that some of the most widely viewed recommendations on TikTok are not supported by scientific evidence.

Do you really need to fix your sleep?

A good first step is to understand whether or not there is anything that you need to fix! Consider tracking your sleep for a few weeks using a sleep diary, and pair this data with a consumer wearable (such as a Fitbit or Apple Watch). Both imperfectly capture sleep data when compared to the gold-standard tool sleep experts use (polysomnography, or a sleep study). However, combining the information can give you a reasonable assessment of your sleep status.

Regularly getting restful sleep can indeed boost health and mood. And all of us can benefit from following basic sleep hygiene tips. But if it takes you 30 minutes or more to fall asleep, or if you are up for 30 minutes or more in the middle of the night, and this happens three or more times per week, then consider reaching out to your health care team to seek further evaluation.

There are effective, nonmedication treatments that are proven to help you sleep better. One example is cognitive behavioral therapy for insomnia, which can dramatically improve insomnia symptoms in a matter of weeks.

Want to learn more about cognitive behavioral therapy for insomnia? Watch this video from the Division of Sleep Medicine at Harvard Medical School with Eric Zhou describing how it works.

About the Author

Eric Zhou, PhD, Contributor

Eric Zhou, PhD, is an assistant professor of psychiatry at Harvard Medical School. He has been invited to speak internationally about sleep health in both pediatric and adult populations, including those with chronic illnesses. His research … See Full Bio View all posts by Eric Zhou, PhD Share

Heavy rains and sea level rise contribute to major flooding events that are one effect of climate change. Surging water rushing into buildings often causes immediate harms, such as drowning deaths, injuries sustained while seeking shelter or fleeing, and hypothermia after exposure to cold waters with no shelter or heat.

But long after news trucks leave and public attention moves on, flooding continues to affect communities in visible and less visible ways. Among the less visible threats is a higher risk of respiratory health problems like asthma and allergic reactions. Fortunately, you can take steps to minimize or avoid flooding, or to reduce respiratory health risks after flooding occurs.

How does flooding trigger respiratory health issues?

Flooding may bring water contaminated with toxic chemicals, heavy metals, pesticides, biotoxins, sewage, and water-borne pathogens into buildings. Afterward, some toxic contaminants remain in dried sediments left behind. When disturbed through everyday actions like walking and cleaning, this turns into microscopic airborne dust. Anything in that dried flood sediment — the toxic chemicals, the metals, the biotoxins — is now in the air you breathe into your lungs, potentially affecting your respiratory health.

Buildings needn’t be submerged during flooding to spur respiratory problems. Many homes we studied after Hurricane Ida suffered water intrusion through roofs, windows, and ventilation ducts — and some were more than 100 miles away from coastal regions that bore the brunt of the storm.

The growth of mold can also affect health

Another common hazard is mold, a fungal growth that forms and spreads on damp or decaying organic matter. Indoor mold generally grows due to extensive dampness, and signals a problem with water or moisture. Damp materials inside buildings following a flood create perfect conditions for rapid mold growth.

Mold can be found indoors and outdoors in all climates. It spreads by making tiny spores that float through the air to land in other locations. No indoor space is entirely free from mold spores, but exposure to high concentrations is linked with respiratory complications such as asthma, allergic rhinitis, and sinusitis. Thus, flooding affects respiratory health by increasing the risk of exposure to higher concentrations of mold spores outdoors and indoors.

For example, after Hurricane Katrina in New Orleans in 2005, the average outdoor concentration of mold spores in flooded areas was roughly double that of non-flooded areas, and the highest concentrations of mold spores were measured indoors. A study on the aftermath of Hurricane Katrina and the flooding in the UK in 2007 showed that water damage accelerated mold growth and respiratory allergies.

Children are especially vulnerable to health problems triggered by mold. All respiratory symptoms — including asthma, bronchitis, eye irritation, and cough — occurred more often in homes reporting mold or dampness, according to a study on the respiratory health of young children in 30 Canadian communities. Other research demonstrates that mold contributes to development of asthma in children.

What can you do to protect against the health harms of flooding?

Our research in New Orleans, LA after Hurricane Ida in 2021 identified common factors — both in housing and flooding events — with great impact on respiratory health. Preliminary results suggest two deciding factors in whether substantial indoor mold appeared were the age of a building’s roof and how many precautionary measures people took after flooding from the hurricane. The impact on respiratory health also varied with flood water height, days per week spent at home, and how many precautionary measures were taken after Ida swept through.

Informed by this and other research, we offer the following tips — some to tackle before flooding or heavy rains, and some to take afterward. While you may not be able to entirely prevent flooding from hurricanes or major storms, taking these and other steps can help.

Before seasonal storms, flooding, or heavy rains start: Protect against water intrusion

• Repair the roof, clean gutters, and seal around skylights, vent pipes, and chimneys to prevent leaks. These are some of the most vulnerable components of a building during storms and hurricanes.
• Declutter drains and empty septic tanks.
• Construct barriers and seal cracks in outer walls and around windows, to prevent heavy rain and floodwater from entering.
• Install a sump pump to drain water from the basement, and backflow valves on sewer lines to prevent water from backing up into the home.

After flooding or major rainstorms: Move quickly to reduce dampness and mold growth

The Environmental Protection Agency recommends limiting contact with flood water, which may have electrical hazards and hazardous substances, including raw sewage. Additionally:

• Minimize your stay in flooded regions (particularly after hurricanes) or buildings until they are dry and safe.
• Check building for traces of water intrusion, dampness, and mold growth immediately after flooding.
• Drain floodwater and dispose of remaining sediment.
• Remove affected porous materials. If possible, dry them outdoors under sunlight.
• Increase the ventilation rate by leaving all windows and doors open, or use a large exhaust fan to dry out the building as fast as possible.
• Use dehumidifiers in damp spaces such as basements.
• Upgrade the air filters in your HVAC system to at least MERV 13, or use portable air cleaners with HEPA filters to reduce your exposure to airborne mold spores.

What to do if you spot mold growth

• Wear a well-fitted N95 face mask, gloves, and rubber boots to clean.
• Clean and disinfect anything that has been in contact with water using soap, detergents, and/or antibacterial cleaning products.
• Dispose of moldy materials in sealed heavy-duty plastic bags.

Taking steps like these — before and after a major storm — goes a long way toward protecting your respiratory health.

Read Flooding Brings Deep Trouble in Harvard Medicine magazine to learn more about the health hazards related to floods.

About the Authors

Parham Azimi, PhD, Contributor

Dr. Parham Azimi is a research associate in the department of environmental health at the Harvard T.H. Chan School of Public Health, investigating the indoor environment’s impact on occupant health and wellness and strategies to improve … See Full Bio View all posts by Parham Azimi, PhD

Joseph Allen, DSc, MPH, CIH, Contributor

Dr. Joseph Allen is an associate professor in the department of environmental health at the Harvard T.H. Chan School of Public Health, and the director of Harvard’s Healthy Buildings Program. He is the coauthor of Healthy … See Full Bio View all posts by Joseph Allen, DSc, MPH, CIH Share

Chocolates and flowers are great gifts for Valentine’s Day. But what if the gifts we give then or throughout the year could be truly life-changing? A gift that could save a life or free someone from dialysis?

You can do this. For people in need of an organ, tissue, or blood donation, a donor can give them a gift that exceeds the value of anything that you can buy. Fittingly, Valentine’s Day is also known as National Donor Day, a time for blood drives and sign-ups for organ and tissue donation. Have you ever wondered what can be donated? Had reservations about donating after death or concerns about risks for live donors? Read on.

The enormous impact of organ, tissue, or cell donation

Imagine you have kidney failure requiring dialysis 12 or more hours each week just to stay alive. Even with this, you know you’re still likely to die a premature death. Or, if your liver is failing, you may experience severe nausea, itching, and confusion; death may only be a matter of weeks or months away. For those with cancer in need of a bone marrow transplant, or someone who’s lost their vision due to corneal disease, finding a donor may be their only good option.

Organ or tissue donation can turn these problems around, giving recipients a chance at a long life, a better quality of life, or both. And yet, the number of people who need organ donation far exceeds compatible donors. While national surveys have found about 90% of Americans support organ donation, only 40% have signed up. More than 103,000 women, men, and children are awaiting an organ transplant in the US. About 6,200 die each year, still waiting.

What can you donate?

The list of ways to help has grown dramatically. Some organs, tissues, or cells can be donated while you’re alive; other donations are only possible after death. A single donor can help more than 80 people!

After death, people can donate:

• bone, cartilage, and tendons
• corneas
• face and hands (though uncommon, they are among the newest additions to this list)
• kidneys
• liver
• lungs
• heart and heart valves
• stomach and intestine
• nerves
• pancreas
• skin
• arteries and veins.

Live donations may include:

• birth tissue, such as the placenta, umbilical cord, and amniotic fluid, which can be used to help heal skin wounds or ulcers and prevent infection
• blood cells, serum, or bone marrow
• a kidney
• part of a lung
• part of the intestine, liver, or pancreas.

To learn more about different types of organ donations, visit Donate Life America.

Becoming a donor after death: Questions and misconceptions

Common misconceptions about becoming an organ donor limit the number of people who are willing to sign up. For example, many people mistakenly believe that

• doctors won’t work as hard to save your life if you’re known to be an organ donor — or worse, doctors will harvest organs before death
• their religion forbids organ donation
• you cannot have an open-casket funeral if you donate your organs.

None of these is true, and none should discourage you from becoming an organ donor. Legitimate medical professionals always keep the patient’s interests front and center. Care would never be jeopardized due to a person’s choices around organ donation. Most major religions allow and support organ donation. If organ donation occurs after death, the clothed body will show no outward signs of organ donation, so an open-casket funeral is an option for organ donors.

Live donors: Blood, bone marrow, and organs

Have you ever donated blood? Congratulations, you’re a live donor! The risk for live donors varies depending on the intended donation, such as:

• Blood, platelets, or plasma: If you’re donating blood or blood products, there is little or no risk involved.
• Bone marrow: Donating bone marrow requires a minor surgical procedure. If general anesthesia is used, there is a chance of a reaction to the anesthesia. Bone marrow is removed through needles inserted into the back of the pelvis bones on each side. Back or hip pain is common, but can be controlled with pain relievers. The body quickly replaces the bone marrow removed, so no long-term problems are expected.
• Stem cells: Stem cells are found in bone marrow or umbilical cord blood. They also appear in small numbers in our blood and can be donated through a process similar to blood donation. This takes about seven or eight hours. Filgrastim, a medication that increases stem cell production, is given for a number of days beforehand. It can cause side effects such as flulike symptoms, bone pain, and fatigue, but these tend to resolve soon after the procedure.
• Kidney, lung, or liver: Surgery to donate a kidney or a portion of a lung or liver comes with a risk of complications, reactions to anesthesia, and significant recovery time. It’s no small matter to give a kidney, or part of a lung or liver.

The vast number of live organ donations occur without complications, and donors typically feel quite positive about the experience.

Who can donate?

Almost anyone can donate blood cells –– including stem cells –– or be a bone marrow, tissue, or organ donor. Exceptions include anyone with active cancer, widespread infection, or organs that aren’t healthy.

What about age? By itself, your age does not disqualify you from organ donation. In 2023, two out of five people donating organs were over 50. People in their 90s have donated organs upon their deaths and saved the lives of others.

However, bone marrow transplants may fail more often when the donor is older, so bone marrow donations by people over age 55 or 60 are usually avoided.

Finding a good match: Immune compatibility

For many transplants, the best results occur when there is immune compatibility between the donor and recipient. Compatibility is based largely on HLA typing, which analyzes genetically-determined proteins on the surface of most cells. These proteins help the immune system identify which cells qualify as foreign or self. Foreign cells trigger an immune attack; cells identified as self should not.

HLA typing can be done by a blood test or cheek swab. Close relatives tend to have the best HLA matches, but complete strangers may be a good match as well.

Fewer donors among people with certain HLA types make finding a match more challenging. Already existing health disparities, such as higher rates of kidney disease among Black Americans and communities of color, are worsened by lower numbers of donors from these communities, an inequity partly driven by a lack of trust in the medical system.

The bottom line

You can make an enormous impact by becoming a donor during your life or after death. In the US, you must opt in to be a donor after death. (Research suggests the opt-out approach many other countries use could significantly increase rates of organ donation in this country.)

I’m hopeful that organ donation in the US and throughout the world will increase over time. While you can still go with chocolates for Valentine’s Day, maybe this year you can also go bigger and become a donor.

About the Author

Robert H. Shmerling, MD, Senior Faculty Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Robert H. Shmerling is the former clinical chief of the division of rheumatology at Beth Israel Deaconess Medical Center (BIDMC), and is a current member of the corresponding faculty in medicine at Harvard Medical School. … See Full Bio View all posts by Robert H. Shmerling, MD Share

School vacation coming up? Wondering how to spend that time? Given how tiring holidays can be — especially for parents who are working — it’s understandable why children are often allowed to spend hours with the TV, tablet, or video games. After all, happy, quiet kids make for happy parents who can finally get stuff done — or relax.

Except kids are spending way too much time in front of screens. According to the American Academy of Child and Adolescent Psychiatry, kids ages 8 to 12 are spending four to six hours a day watching or using screens — and tweens and teens are spending nine hours.

Given how enticing devices and social media can be, those numbers can easily go higher during unscheduled times like weekends and school vacation. That’s why it’s good to be proactive and come up with other activities. Below are some ideas for parents and caregivers to try. These are mostly good for kids through elementary school, but tweens and teens may enjoy some of them too.

Spending time off the screen

Go outside. This sounds obvious, but spending time outdoors is something kids do less than they used to — and it can be really fun. If you have a yard, go out into it and play hide-and-seek or build a fort from snow or anything else that’s around. If you don’t have a yard, go to a local park or just go for a walk. A scavenger hunt up and down the block or game of I Spy may be a good enticement.

Go to the library. Do this early on in vacation, so that your child has lots of books, puzzles, and games to pass the time. Check out as many as they allow and you can carry. Ask if a Library of Things is available at a branch near you: crafts, tools, musical instruments, birding kits, telescopes — even metal detectors may be checked out for free.

Build a fort in the living room. Use blankets or sheets over chairs; if you have a small tent, set it up. Bring in pillows, sleeping bags, and flashlights; let the kids sleep in it at night. Let it stay up all vacation.

Build a city in the living room. Use blocks, Legos, boxes (or anything else), and add roads, cars, people, animals, trains, and other toys. Let it stay up all vacation, and make it bigger every day.

Getting creative off the screen

Get creative. Go to the craft store and stock up on inexpensive supplies. Buy things like poster board, huge pieces of paper (you could use those for your city, too, to make parks, roads, and parking lots), paints, and markers. You can make a paper mural, a comic book, a story, posters, or whatever catches your child’s imagination. If you know how to knit or sew, think about teaching your child or making a simple project together.  Play music while you create.

Read out loud. There are so many books that are fun to read aloud. When my children were younger, we read the Harry Potter series out loud, as well as the Chronicles of Narnia and books by E.B. White and Roald Dahl. Act out the voices. Have some fun.

Have a puppet show. If you don’t have puppets, you can make some with socks — or you can hold up dolls or action figures and do the talking for them. You can make a makeshift stage by cutting out the back of a box and taping cloth (like a pillowcase) to fall over the front.

Get out the games. There are so many that work across the ages, like checkers, chess, Uno, Connect 4, Sorry, Twister, Clue, Scrabble, or Monopoly. We forget how much fun these can be.

Bake. You don’t have to get fancy — it’s fine to use mixes or pre-made cookie dough. There’s nothing better than baked goods straight from the oven, and adding frosting and decorations makes it even more fun. Turn on music and dance while things bake.

While parents or caregivers need to be involved with some of these activities (like the ones involving the oven, or reading out loud), kids can do many of them independently once you have it started. Which, really, is what children need: time to use their imagination and just play.

But you just may find that once you have things started, you'll want to play, too.

About the Author

Claire McCarthy, MD, Senior Faculty Editor, Harvard Health Publishing

Claire McCarthy, MD, is a primary care pediatrician at Boston Children’s Hospital, and an assistant professor of pediatrics at Harvard Medical School. In addition to being a senior faculty editor for Harvard Health Publishing, Dr. McCarthy … See Full Bio View all posts by Claire McCarthy, MD Share

Have you met your step goals today? If so, well done! Monitoring your step count can inspire you to bump up activity over time.

But when it comes to assessing fitness or cardiovascular disease risk, counting steps might not be enough. Combining steps and average heart rate (as measured by a smart device) could be a better way for you to assess fitness and gain insights into your risk for major illnesses like heart attack or diabetes. Read on to learn how many steps you need for better health, and why tagging on heart rate matters.

Steps alone versus steps plus heart rate

First, how many steps should you aim for daily? There’s nothing special about the 10,000-steps number often touted: sure, it sounds impressive, and it’s a nice round number that has been linked to certain health benefits. But fewer daily steps — 4,000 to 7,000 — might be enough to help you become healthier. And taking more than 10,000 steps a day might be even better.

Second, people walking briskly up and down hills are getting a lot more exercise than those walking slowly on flat terrain, even if they take the same number of steps.

So, at a time when millions of people are carrying around smartphones or wearing watches that monitor physical activity and body functions, might there be a better way than just a step count to assess our fitness and risk of developing major disease?

According to a new study, the answer is yes.

Get out your calculator: A new measure of health risks and fitness

Researchers publishing in the Journal of the American Heart Association found that a simple ratio that includes both heart rate and step count is better than just counting steps. It’s called the DHRPS, which stands for daily heart rate per step. To calculate it, take your average daily heart rate and divide it by your average daily step count. Yes, to determine your DHRPS you’ll need a way to continuously monitor your heart rate, such as a smartwatch or Fitbit. And you’ll need to do some simple math to arrive at your DHRPS ratio, as explained below.

The study enrolled nearly 7,000 people (average age: 55). Each wore a Fitbit, a device that straps onto the wrist and is programmed to monitor steps taken and average heart rate each day. (Fitbits also have other features such as reminders to be active, a tracker of how far you’ve walked, and sleep quality, but these weren’t part of this study.)

Over the five years of the study, volunteers took more than 50 billion steps. When each individual’s DHRPS was calculated and compared with their other health information, researchers found that higher scores were linked to an increased risk of

• type 2 diabetes
• high blood pressure (hypertension)
• coronary atherosclerosis, heart attack, and heart failure
• stroke.

The DHRPS had stronger associations with these diseases than either heart rate or step count alone. In addition, people with higher DHRPS scores were less likely to report good health than those who had the lowest scores. And among the 21 study subjects who had exercise stress testing, those with the highest DHRPS scores had the lowest capacity for exercise.

What counts as a higher score in this study?

In this study, DHRPS scores were divided into three groups:

• Low: 0.0081 or lower
• Medium: higher than 0.0081 but lower than 0.0147
• High: 0.0147 or higher.

How to make daily heart rate per step calculations

Here's how it works. Let’s say that over a one-month period your average daily heart rate is 80 and your average step count is 4,000. That means your DHRPS equals 80/4,000, or 0.0200. If the next month your average heart rate is still 80 but you take about 6,000 steps a day, your DHRPS is 80/6,000, or 0.0133. Since lower scores are better, this is a positive trend.

Should you start calculating your DHRPS?

Do the results described in this study tempt you to begin monitoring your DHRPS? You may decide to hold off until further research confirms actual health benefits from knowing that ratio.

This study merely explored the relationship between DHRPS and risk of diabetes or cardiovascular disease like heart attack or stroke. This type of study can only establish a link between the DHRPS and disease. It can’t determine whether a higher score actually causes them.

Here are four other limitations of this research to keep in mind:

• Participants in this study were likely more willing to monitor their activity and health than the average person. And more than 70% of the study subjects were female and more than 80% were white. The results could have been quite different outside of a research setting and if a more diverse group had been included.
• The findings were not compared to standard risk factors for cardiovascular disease, such as having a strong family history of cardiovascular disease or smoking cigarettes. Nor were DHRPS scores compared with standard risk calculators for cardiovascular disease. So the value of DHRPS compared with other readily available (and free) risk assessments isn’t clear.
• The exercise stress testing findings were based on only 21 people. That’s far too few to make definitive conclusions.
• The cost of a device to continuously monitor heart rate and steps can run in the hundreds of dollars; for many this may be prohibitive, especially since the benefits of calculating the DHRPS are unproven.

The bottom line

Tracking DHRPS or daily activity and other health measures might be a way to improve your health if the results prompt you to make positive changes in behavior, such as becoming more active. Or perhaps DHRPS could one day help your health care provider monitor your fitness, better assess your health risks, and recommend preventive approaches. But we don’t yet know if this new measure will actually lead to improved health because the study didn’t explore that.

If you already have a device that continuously monitors your daily heart rate and step count, feel free to do the math! Maybe knowing your DHRPS will motivate you to do more to lower your risk of diabetes and cardiovascular disease. Or maybe it won’t. We need more research and experience with this measure to know whether it can deliver on its potential to improve health.

About the Author

Robert H. Shmerling, MD, Senior Faculty Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Robert H. Shmerling is the former clinical chief of the division of rheumatology at Beth Israel Deaconess Medical Center (BIDMC), and is a current member of the corresponding faculty in medicine at Harvard Medical School. … See Full Bio View all posts by Robert H. Shmerling, MD Share