Category: NATURAL-BEAUTY

Everyone who lives with inflammatory bowel disease (IBD) knows their illness has a major impact on daily life. Many people are diagnosed in their 20s or 30s, a time when we might hope for few health challenges.

Medications, and sometimes surgery, may be used to treat IBD. If you identify as LGBTQ+, you might wonder how all of this may affect you — your physical health, of course, but also your sexual health and pleasure. Below are a few things to understand and consider.

What is inflammatory bowel disease?

IBD is a condition that causes inflammation along the gastrointestinal (GI) tract. The two main types are Crohn's disease and ulcerative colitis:

• Crohn's disease: inflammation can occur anywhere along the GI tract (from the mouth to the anus)
• Ulcerative colitis: typically affects the large intestine (colon) only.

IBD can cause diarrhea, bloody stool, weight loss, and abdominal pain, and is typically diagnosed with blood and stool tests, imaging, and colonoscopy. A diagnosis of IBD may increase the risk of developing anxiety or depression, and can also have an impact on sexual health. People with IBD may require long-term medical treatment or surgery for their condition.

The starting point: Talking to your doctor

Talking to your medical team about IBD and sexual health may not be easy. This may depend on how comfortable you feel disclosing your LGBTQ+ identity with your health care providers. Ideally, you should feel comfortable discussing sexuality with your medical team, including what types of sexual partners and activities you participate in and how IBD may affect this part of your life.

Be aware that health care providers may not be able to address all LGBTQ+-specific concerns. Optimal care for people with IBD who identify as LGBTQ+ is not fully understood. However, this is an active area of research.

How might medicines for IBD affect sexual health?

Many effective IBD medications subdue the immune system to decrease inflammation. These immunosuppressive medicines may raise your risk for sexually transmitted infections (STIs) such as HIV, chlamydia, syphilis, and gonorrhea.

What you can do: Discuss these concerns with your doctor so you can take appropriate protective measures. This might include:

• ensuring that your vaccinations, such as hepatitis B and HPV, are up to date.
• engaging in sex using barrier protection to prevent STI transmission.
• taking pre-exposure prophylaxis (PrEP). This safe and effective medicine helps prevent the spread of HIV. Ask your primary care doctor or gastroenterologist if PrEP is appropriate for you.

How might surgery for IBD affect sexual health?

For some people with IBD, gut inflammation is severe enough to require surgery to remove part of the intestine. For example:

• Abscesses or fistulas (abnormal connections between two body parts) sometimes form when someone has Crohn's disease around the anus. This may require surgical treatment.
• Active inflammation in the rectum or anus may make sex painful, particularly for people who engage in anal receptive sex.
• We don't yet know whether anal receptive sex is safe for people who have had surgery to remove the colon and create a J-pouch, which is formed from small intestine to create an internal pouch that enables normal bowel movements.

What you can do: Discuss your concerns with your gastroenterologist and colorectal surgeon.

If you engage in anal sex, you may be confused about whether it is safe to do so. While you may feel uncomfortable discussing this concern and others with your doctor, try to be as honest and open as you can. That way, you'll receive the best information on how to engage in safe and enjoyable sex after an IBD diagnosis or surgery.

What else to consider if you are transgender

People with IBD who are transgender may have additional concerns to address.

For example, there may be a risk for sexual side effects from gender-affirming surgery. These procedures may include vaginoplasty (surgical creation of a vagina) for transgender females, or phalloplasty (surgical creation of a penis) for transgender males. The safety of these procedures in people with IBD is not currently well understood.

What you can do: If you identify as transgender, ask your doctor if any gender-affirming surgeries you've had or medicines you take, such as hormones, might affect your IBD, recommended treatments, or sexual health.

If you're considering gender-affirming surgery, discuss your options with your medical team. Be aware that gender-affirming surgery may be more challenging, or may not be advisable, for people with complex or active IBD. It's important to discuss your specific risks with your doctor when pursuing gender-affirming care. Having access to a team of physicians, including a surgeon and a gastroenterologist, may improve outcomes.

The bottom line

Try to talk to your gastroenterologist about how your sexual practices and gender identity may affect — and be affected by — your IBD. A conversation like this may feel uncomfortable, but being candid about your symptoms and concerns will help you receive the best possible care.

Often, a multidisciplinary approach to care is helpful. Your health care providers, including your gastroenterologist and surgeon, may suggest seeing additional specialists.

Much remains unknown about sexual health and practices in LGBTQ+ people with IBD. While more research is needed, open communication on the impact of medications, surgery, and other aspects of living with IBD can do a lot to improve your quality of life.

About the Authors

Andrew Eidelberg, MD, Contributor

Dr. Andrew Eidelberg is a third-year internal medicine resident at Beth Israel Deaconess Medical Center. After graduating from the University of Miami and Weill Cornell Medical College, he decided to pursue a career in gastroenterology, specifically … See Full Bio View all posts by Andrew Eidelberg, MD

Loren Rabinowitz, MD, Contributor

Dr. Loren Rabinowitz is an instructor in medicine Beth Israel Deaconess Medical Center and Harvard Medical School, and an attending physician in the Inflammatory Bowel Disease Center at BIDMC. Her clinical research is focused on the … See Full Bio View all posts by Loren Rabinowitz, MD

In the US, we are fortunate to have a dizzying array of fruits that fill our grocery stores year-round. They come in all sizes, shapes, and colors, and we have all heard about the recommended five servings of fruits and vegetables a day. So, what are we eating them for? And how does the nutritional value vary between fruits? Is there any difference between whole fruits versus juice, fresh versus dried? Let’s take a look.

Differences between fruits

Just like other foods, different fruits have different nutrient values. Generally, whole fruits are good sources of fiber while fruit juices are not. And one cup of fruit juice, even 100% fruit juice, has a lot more sugar than one piece or one serving of whole fruit. In addition, whole fruits are more satiating than juices. When meeting the recommended fruit and vegetable intake, it is better to eat them (whole) than drink them (juice). However, one should not completely avoid drinking juice — if it is 100% juice — but you should limit consumption to no more than 4 to 8 ounces a day.

The freezer section of the grocery store is often stocked with quite a variety of frozen fruits. These are often peeled and cut already (like mango), which is convenient and often less expensive than fresh fruits. Frozen fruits are usually picked and quick-frozen near the point of harvest, therefore the nutrients are well preserved. Moreover, some seasonal fruits such as blueberries are readily available in frozen form. The key to selection is to choose plain frozen fruits without added sugar.

There are a number of fruits that are available in dried form, such as raisins, apricots, and pineapple — just to name a few. They also have good nutrient values, keep for a long time, are convenient to carry around, and are high in calories, making them a favorite for hikers and campers. However, some often have sugar added in the drying process, particularly mango and pineapple. Dried cranberries almost always have sugar added, as they are naturally very tart. Even for those without added sugar, the compact volume and sweetness make it quite easy to eat a lot in one sitting, and the calories can add up quickly.

Some dried fruits like raisins and apricots are also treated with sulfur dioxide to preserve freshness and color. For most people that is not a concern; however, some individuals are sensitive, especially those with asthma. Sulfur dioxide treatment is labeled on the package, so it is not difficult to avoid if necessary.

What about buying organic?

We have much choice when it comes to organic and conventionally grown fruits, be they fresh, frozen, or dried. Nutritionally, there is not enough difference to choose one over the other, though consumers might choose one over another based on farming practices and environmental impact. The US has regulations on pesticide use, but some fruits tend to have more residual pesticides than others, and it is always recommended that you wash fruits thoroughly before eating.

Differences in nutritional value

Different fruits are good sources of different nutrients. Citrus fruits are high in vitamin C, and other fruits are good sources of nutrients too. A few examples below:

Nutrient	Major functions	Good fruit sources
potassium	fluid and electrolyte balance, maintaining healthy blood pressure	oranges, raspberries, bananas, cherries, pomegranates, honeydew melons, avocados
iron	formation of red blood cells, brain growth in children	dried apricots, raisins
vitamin C	maintaining healthy immune system, wound healing, antioxidant	citrus fruits, strawberries, kiwi
folate	DNA synthesis, formation of red blood cells, early neural tube development in the fetus	oranges, mangos, avocados
vitamin A	night vision, cell growth, immune function	cantaloupe

Besides the above nutrients, certain fruits are also high in flavonoids. This is a diverse group of compounds, some of which are potent antioxidants that protect against oxidative damage, and may reduce the risk of certain diseases such as cardiovascular disease and diabetes. In particular, citrus fruits are high in the flavanones class of flavonoids, and blackberries, blueberries, cranberries, and cherries are high in the anthocyanidins class of flavonoids.

So, what fruits should we eat?

As you can see, there isn’t one fruit that has all the nutrients, so eating a variety is the key to good health. Try something new! Most adults should eat a variety of colors for about 2 cups a day. Prioritize whole fruits over juice. Eat what is in season, as it will be cheaper. And enjoy your fruits: eat mindfully to fully appreciate the smell, texture, and flavor. Bon appetit!

About the Author

Teresa Fung, MS, RD, ScD, Contributor

Teresa Fung is an adjunct professor at the Harvard T.H. Chan School of Public Health. She received her BS and MS in nutrition from Cornell University, and her ScD in both nutrition and epidemiology from HSPH. She … See Full Bio View all posts by Teresa Fung, MS, RD, ScD

As wildfires become more frequent due to climate change and drier conditions, more of us and more of our communities are at risk for harm. Here is information to help you prepare and protect yourself and your family.

How does wildfire smoke affect air quality?

Wildfire smoke contributes greatly to poor air quality. Just like fossil fuel pollution from burning coal, oil, and gas, wildfires create hazardous gases and tiny particles of varying sizes (known as particulate matter, or PM10, PM2.5, PM0.1) that are harmful to breathe. Wildfire smoke also contains other toxins that come from burning buildings and chemical storage.

The smoke can travel to distant regions, carried by weather patterns and jet streams.

How does wildfire smoke affect our health?

The small particles in wildfire smoke are the most worrisome to our health. When we breathe them in, these particles can travel deep into the lungs and sometimes into the bloodstream.

The health effects of wildfire smoke include eye irritation, coughing, wheezing, and difficulty breathing. The smoke may also increase risk for respiratory infections like COVID-19. Other possible serious health effects include heart failure, heart attacks, and strokes.

Who needs to be especially careful?

Those most at risk from wildfire smoke include children, older adults, outdoor workers, and anyone who is pregnant or who has heart or lung conditions.

If you have a chronic health condition, talk to your doctor about how the smoke might affect you. Find out what symptoms should prompt medical attention or adjustment of your medications. This is especially important if you have lung problems or heart problems.

What can you do to prepare for wildfire emergencies?

If you live in an area threatened by wildfires, or where heat and dry conditions make them more likely to occur:

• Create an evacuation plan for your family before a wildfire occurs.
• Make sure that you have several days on hand of medications, water, and food that doesn't need to be cooked. This will help if you need to leave suddenly due to a wildfire or another natural disaster.
• Regularly check this fire and smoke map, which shows current wildfire conditions and has links to state advisories.
• Follow alerts from local officials if you are in the region of an active fire.

What steps can you take to lower health risks during poor air quality days?

These six tips can help you stay healthy during wildfire smoke advisories and at other times when air quality is poor:

• Stay aware of air quality. AirNow.gov shares real-time air quality risk category for your area accompanied by activity guidance. When recommended, stay indoors, close doors, windows, and any outdoor air intake vents.
• Consider buying an air purifier. This is also important even when there are no regional wildfires if you live in a building that is in poor condition. See my prior post for tips about pollution and air purifiers. The EPA recommends avoiding air cleaners that generate ozone, which is also a pollutant.
• Understand your HVAC system if you have one. The quality and cleanliness of your filters counts, so choose high-efficiency filters if possible, and replace these as needed. It's also important to know if your system has outdoor air intake vents.
• Avoid creating indoor pollution. That means no smoking, no vacuuming, and no burning of products like candles or incense. Avoid frying foods or using gas stoves, especially if your stove is not well ventilated.
• Make a "clean room." Choose a room with fewer doors and windows. Run an air purifier that is the appropriate size for this room, especially if you are not using central AC to keep cool.
• Minimize outdoor time and wear a mask outside. Again, ensuring that you have several days of medications and food that doesn't need to be cooked will help. If you must go outdoors, minimize time and level of activity. A well-fitted N95 or KN95 mask or P100 respirator can help keep you from breathing in small particles floating in smoky air (note: automatic PDF download).

About the Author

Wynne Armand, MD, Contributor

Dr. Wynne Armand is a physician at Massachusetts General Hospital (MGH), where she provides primary care; an assistant professor in medicine at Harvard Medical School; and associate director of the MGH Center for the Environment and … See Full Bio View all posts by Wynne Armand, MD

Busy days make it hard to put heart health on the front burner. It just feels like you don't have time for habits that keep the ticker in top shape — like exercising regularly, getting enough sleep, and eating a healthy diet. So maybe you take the stairs when you can, or you park farther away from a store to rack up a few extra steps each day. But what else can you do? Here are three things that might fit in your schedule.

Swap electronic communication for an in-person meeting

It's fine if texting, emailing, social media, or Zoom calls are your primary means of communicating with others. But it's not okay if those methods leave you feeling lonely or isolated — two problems linked to higher risks for heart disease, heart attack, or stroke, according to a scientific statement from the American Heart Association in the Journal of the American Heart Association.

To combat loneliness and isolation, try to replace some of your electronic back-and-forth with people with in-person meetings. Maybe you can find room in your schedule for a quick walk, cup of coffee, or brief lunch with a friend or colleague.

"Time spent face-to-face helps connect you to others and may make you feel less isolated," explains Matthew Lee, a sociologist and research associate at Harvard University's Human Flourishing Program. "Being physically co-present can help you feel more engaged with others, more valued, and more likely to feel a sense of shared identity — all things that may help ease loneliness. This is why some doctors are starting to engage in 'social prescribing,' including suggesting that people get involved in volunteering and other activities that build in-person social relationships."

A recent study published in the International Journal of Public Health by Lee and a team of Harvard-led researchers suggests that better social connectedness may reduce the risk of being diagnosed with depression or anxiety. Both are associated with heart disease or making existing heart conditions worse.

Swap an unhealthy breakfast for a healthier one

Is your typical breakfast something quick and full of refined (not whole) grains, processed meat, saturated fat, or added sugar? Eating that kind of food regularly may drive up calories, weight, blood sugar, or cholesterol levels — and that's not good for your heart.

Instead, choose breakfast foods rich in fiber, a type of carbohydrate that either passes through the body undigested (insoluble fiber) or dissolves into a gel (soluble fiber) that coats the gut.

Not only does fiber help digestion, it also

• traps, mops up, and lowers bad [LDL] cholesterol that can lead to clogged arteries
• controls blood sugar and lowers the risk for diabetes, which is strongly associated with heart attacks and strokes
• may help fight chronic inflammation, which plays a role in clogging arteries and causing heart attacks.

Fruits, nuts, seeds, whole grains (oats, barley, quinoa) and many other foods are rich in fiber. Try these fiber-rich breakfast ideas:

• microwaved oatmeal (heat a 1/2 cup of oatmeal with almost a cup of low-fat milk for about two minutes)
• a serving of cooked quinoa (cold, if you have it in your fridge) with a dollop of nonfat Greek yogurt, berries, and granola
• whole-grain cereal with milk (go for cereals with the highest amounts of whole grains and lowest amounts of added sugars)
• a slice of whole-grain toast with two tablespoons of nut butter (like almond or peanut butter)
• one or two handfuls of homemade trail mix (use your favorite unsalted nuts, sunflower seeds, and dried fruit such as raisins or apricots).

Swap a few minutes of scroll time for meditation time

If you ever take a break from your busy day to scroll through news on your phone or computer, chances are you can also find a little time to meditate, which is important for heart health. Research indicates that people who meditate have lower rates of high cholesterol, diabetes, high blood pressure, stroke, and coronary artery disease compared with people who don't meditate.

What's the connection? Meditating triggers the body's relaxation response, a well-studied physiological change that appears to help lower your blood pressure, heart rate, breathing rate, oxygen consumption, adrenaline levels, and levels of the stress hormone cortisol.

The great news: it doesn't take much time to reap the heart-healthy benefits of meditating — just about 10 to 20 minutes per day.

Ideas for quick ways to meditate in a busy day include sitting quietly, closing your eyes, and

• focusing on your breathing, without judging sounds you hear or thoughts that pop into your head
• listening to a guided meditation, which uses mental images to help you relax
• listening to a recording of calming sounds such as waves, a bubbling brook, or gentle rain.

Just try to calm your brain for a few minutes a day. Soon, you may find you've become better at meditating and better at practicing other heart-healthy habits, no matter how busy you are.

About the Author

Heidi Godman, Executive Editor, Harvard Health Letter

Heidi Godman is the executive editor of the Harvard Health Letter. Before coming to the Health Letter, she was an award-winning television news anchor and medical reporter for 25 years. Heidi was named a journalism fellow … See Full Bio View all posts by Heidi Godman

I admit it: I’m not a fan of drug ads. I think the information provided is often confusing and rarely well-balanced. Plus, there are just so many ads. They show up on TV and streaming programs, on social media, on billboards and the sides of busses, on tote bags, and in public bathrooms. Yes, there’s no refuge — even there — from the billions spent on direct-to-consumer ads in the US.

I’ve often wondered how highly-promoted, expensive new drugs stack up against other available treatments. Now a new study in JAMA Network Open considers exactly that.

Many advertised drugs are no better than older drugs

The study assessed 73 of the most heavily advertised drugs in the US between 2015 and 2021. Each drug had been rated by at least one independent health agency. Researchers tallied how many of these drugs received a high therapeutic value rating, indicating that a drug had at least a moderate advantage compared with previously available treatments.

The results? Only about one in four of these heavily advertised drugs had high therapeutic value. During the six years of the study, pharmaceutical companies spent an estimated $15.9 billion promoting drugs on TV that showed no major advantage over less costly drugs!

Why drug ads are not popular

Only the US and New Zealand allow direct-to-consumer medication marketing. The American Medical Association recommended a ban in 2015. While I’ve often written about reasons to be skeptical, let’s focus here on three potential harms to your wallet and your health.

Drug ads may

• raise already astronomical health care costs by increasing requests for unnecessary treatment and promoting much costlier medicines than older or generic drugs.
• create diseases to be treated. Everyday experiences, such as fatigue or occasional dryness in the eyes, may be framed in drug ads as medical conditions warranting immediate treatment. Yet often, such symptoms are minor, temporary experiences. Another example is “low T” (referring to low blood testosterone). While it’s not a recognized illness on its own, ads for it have likely contributed to increased prescriptions for testosterone-containing medicines.
• promote new drugs before enough is known about long-term safety. The pain reliever rofecoxib (Vioxx) is one example. This anti-inflammatory medicine was supposed to be safer than older medicines. It was withdrawn from the market when evidence emerged that it might increase the risk of heart attack and stroke.

Four questions to ask your doctor if you’re curious about a drug ad

Wondering whether you should be taking an advertised drug? Ask your doctor:

• Do I have a condition for which this drug is recommended?
• Is there any reason to expect this drug will be more helpful than what I’m already taking?
• Is this drug more expensive than my current treatment?
• Do my health conditions or the medications I already take make the drug in the ad a poor choice for me?

The bottom line

The AMA recommended banning drug ads nearly a decade ago. But a drug ad ban seems unlikely, given strong lobbying by the pharmaceutical companies and concerns about violating their freedom of speech.

Still, cigarette commercials were banned in 1971, so it’s not an impossible dream. Meanwhile, my advice is to be skeptical about information in drug ads, and rely on more reliable sources of medical information, including your doctor. Consider contacting the Federal Communications Commission if you have complaints about these ads — a step few Americans seem to take. And try this: mute the TV, fast-forward your podcast, and close pop-ups as soon as drug ads appear.

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

In June, the FDA approved a new treatment for the most advanced type of prostate cancer. Patients who have this condition, which is called metastatic castration-resistant prostate cancer (mCRPC), have few therapeutic options, so the approval helps to fill an urgent need.

mCRPC sets in when the front-line hormonal therapies that doctors use first for treating metastatic prostate cancer stop working. These drugs limit the body’s production of testosterone, a hormone that fuels prostate cancer growth. If they are no longer effective, then doctors switch to a different class of drugs known as anti-androgens that further inhibit testosterone by blocking its cell receptor. One of those drugs is called enzalutamide.

The newly approved treatment combines enzalutamide with a second drug, talazoparib, that was already on the market for female cancer patients who test positive for BRCA mutations. These inherited gene defects boost risks for breast and ovarian cancer, but they can also elevate risks for prostate cancer in men. Indeed, an estimated 10% of men with metastatic prostate cancer are BRCA-positive.

Talazoparib inhibits a DNA-repair system called PARP that the tumor cells need to keep their own genes in working order. When PARP is blocked by treatment, the cancer cells will eventually die. Other PARP inhibitors, including olaparib and rucaparib, are already approved for advanced prostate cancer in BRCA-positive men.

During research leading to this latest approval, 399 men with mCRPC were randomly divided into two groups. One group received talazoparib plus enzalutamide; the other group was treated with enzalutamide plus placebo. The men averaged 70 years in age, and most of them had already been treated with chemotherapy and/or a different anti-androgen called abiraterone. All the men were positive for either BRCA mutations or defects affecting other DNA-repair genes.

What the study showed

Results from the still-unpublished study were presented at the 2023 American Society of Oncology Annual Meeting in June. After a median follow-up of roughly 17 months, the enzalutamide/talazoparib combination reduced the risk of death or visible signs of tumor progression by 55%.

Among the specific subgroup of BRCA-positive patients, “there was an 80% reduction in risk progression or death, which is enormous for these men and obviously very welcome,” said lead researcher Dr. Karim Fizazi, a professor at the University of Paris-Saclay in France.

Scientists had hoped that combining PARP inhibitors with anti-androgens would similarly benefit prostate cancer patients with no DNA-repair defects, but evidence from a different study by Dr. Fizazi and his colleagues shows they do not.

For that reason, the FDA approved the new combination only for mCRPC patients who test positive for mutations affecting DNA-repair genes. Dr. Fizazi and his colleagues are continuing to monitor the enrolled patients for improvements in other areas, such as overall survival, quality of life, and subsequent need for chemotherapy.

Dr. David Einstein, an assistant professor of medicine at Harvard Medical School and a medical oncologist at Beth Israel Deaconess Medical Center in Boston, says the evidence helps to confirm that PARP inhibitors have a role to play in genetically-selected men with mCRPC. Additional research is needed to assess if the observed benefits are “specific to the combination or just because access to PARP inhibition was provided at some point in the disease course,” he says.

“Genetic testing for BRCA, which originally targeted females, is now becoming mainstream for men with a family history of breast and ovarian cancers, as well as men with mCRPC regardless of family history,” says Dr. Marc B. Garnick, the Gorman Brothers Professor of Medicine at Harvard Medical School and Beth Israel Deaconess Medical Center. “This is important, as it has implications for other family members and treatment choices alike. Also important to note is that where this study enrolled men who had already been treated with chemotherapy and/or abiraterone, future research will likely move the enzalutamide/talazoparib combination — or components of it — to earlier disease stages.”

About the Author

Charlie Schmidt, Editor, Harvard Medical School Annual Report on Prostate Diseases

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

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

The first thing to know about ringworm is that there are no worms involved.

This generally harmless skin infection is caused by a fungus. The fungus causes a raised rash usually shaped like a ring, almost as if a worm was curled up under the skin (but again: no worms are involved).

The medical name for ringworm is tinea corporis.

Are there other types of tinea infections?

There are many different kinds of tinea skin infections, named in Latin for the part of the body they affect, such as the

• scalp (tinea capitis)
• groin (tinea cruris)
• feet (tinea pedis)
• body (tinea corporis).

Tinea infections can look a bit different depending on what part of the body they affect, but they are usually pink or red and scaly.

How do you get ringworm?

Tinea infections, particularly ringworm (tinea corporis), are very common. People catch them from other infected people and also from infected animals, particularly dogs and cats. They can also spread from one part of the body to another.

What does ringworm look like?

It usually starts as a pink scaly patch that then spreads out into a ring. The ring (which is not necessarily perfectly round) usually spreads wider with time. It can sometimes be itchy, but most of the time doesn’t cause any discomfort.

There are other rashes that can have a ringlike shape, so it’s always important to check in with your doctor, especially if the ring isn’t scaly. But most ringlike rashes are tinea.

How is ringworm treated?

Luckily, tinea corporis and the other kinds of tinea are very treatable. Most of the time, an antifungal cream does the trick.

When the rash is extensive (which is rare) or doesn’t respond to an antifungal cream (also rare), an antifungal medication can be taken by mouth.

As is the case with many other germs these days, there are some drug-resistant cases of tinea related to overuse of antifungal medications. But the vast majority of fungal infections go away with medication.

What should you do if you think a family member — or a pet — has ringworm?

If you think someone in your family has ringworm, call your doctor. The sooner you get started on treatment, the better.

If someone in the family has been diagnosed with ringworm, make sure that others don’t share clothing, towels, or sheets. Have everyone wash their hands frequently and well.

If your pet has a scaly rash, call the vet. Vacuum the areas your pet frequents, and have everyone wash their hands after touching the pet.

Can you prevent ringworm?

To prevent tinea corporis and other kinds of tinea:

• Keep skin clean and dry.
• Change clothes (particularly socks and underwear) regularly.
• Wash your hands regularly (this helps prevent all sorts of infections).
• If your child plays contact sports, make sure they shower after practice, keep their uniform and gear clean, and don’t share gear with other players.

To learn more about ringworm, visit the website of the Centers for Disease and Prevention.

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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

Summer is an ideal time to take a hike, especially if you have the opportunity to explore one of our country’s many state and national parks. But if you venture far from home, it’s essential to make sure you’re prepared for the local climate and other conditions you may encounter on the trail, especially if you’re not an experienced hiker. Higher temperatures than you’re accustomed to or other extreme weather can be deadly.

“If you’re taking a hike in mid-July in the Arizona desert, there’s a very different list of considerations than if you’re in the mountains of Montana or the forests of North Carolina,” says Dr. N. Stuart Harris, chief of the Division of Wilderness Medicine at Harvard-affiliated Massachusetts General Hospital. Here’s a run-down of what to consider before you hit the trail.

Traveling companions, safety notifications, and orientation

First, it’s safer to travel in pairs or a group of people. But always tell someone not on your hike where you’re going, your anticipated route, and when you expect to return. National parks often require reservations or permits for overnight stays or treks to certain locales, and keep a record of day-hikers, so sign up as requested. If you end up getting injured or lost, the information can make a huge difference in locating you more quickly.

Remember to bring a map and know how to orient yourself. In many wilderness areas, cell service may be spotty or nonexistent, so don’t count on using your phone’s GPS.

In the desert, you may be able to see for 50 miles in the distance. But if you’re in a steep, wooded area, you might not be able to see 100 yards ahead and it’s much easier to become disoriented, says Dr. Harris.

Be ready for heat, humidity, and other weather hazards

Check forecasts first. Always check the forecast so you can be prepared for weather changes. Temperatures may drop and wind may increase as you climb higher. If you’re in an area prone to thunderstorms, lightning injury should definitely be on your radar, says Dr. Harris. Learn these lightning safety tips from the Centers for Disease Control and Prevention. Because these storms usually strike in the afternoon, you can minimize your risk by hiking in the earlier part of the day.

Hydrate well. During any type of exercise — especially hiking, which often demands a fair bit of exertion — be sure to drink extra water to replace the fluid you lose from sweating. On a warm day, you might not notice you’re sweating if it’s breezy. Pay attention to any signs or alerts advising hikers on how much water is best to carry.

Consider humidity. Temperature isn’t the only consideration, however. “If you’re in Arizona and the temperature is over 100° F, your body may be better able to release heat by sweating than if you’re in a very humid area,” says Dr. Harris. In the Great Smoky Mountains, for example, the temperature in July may be only in the high 80s. But humidity levels usually hover around 75% or higher. That means your sweat will evaporate more slowly, so your body’s natural cooling mechanism doesn’t work as efficiently. Be sure to rest and hydrate if you start feeling overheated.

What to wear and bring

Many park websites offer detailed safety tips specific to the terrain and weather you may encounter on a hike, so check before you go. Five basics to consider are as follows:

• If your hike involves rocky or uneven terrain, hiking boots will offer more support than tennis shoes.
• You’ll be more comfortable in lightweight, moisture-wicking clothing, but bring extra layers and rain gear, if the weather forecast suggests this is appropriate. Temperature drops can be surprising in some places when the sun wanes, so be prepared to layer up as needed if you’re out longer than expected.
• Wear a wide-brimmed hat and sunglasses to shield you from the sun’s glare — and don’t forget to apply sunscreen to all exposed skin before you set off.
• Along with plenty of fluids, bring high-energy snacks. If you get off course or encounter a problem, you’ll be glad you did.

Additionally, depending on where you’re hiking, you may need to dodge rash-inducing plants, including stinging nettles, poison oak, or poison ivy. Bring insect repellent to fend off biting insects and follow prevention strategies for ticks, which may harbor bacteria responsible for Lyme disease and other illnesses. Finally, carry a first aid kit with bandages for cuts and scrapes and moleskin for blisters.

About the Author

Julie Corliss, Executive Editor, Harvard Heart Letter

Julie Corliss is the executive editor of the Harvard Heart Letter. Before working at Harvard, she was a medical writer and editor at HealthNews, a consumer newsletter affiliated with The New England Journal of Medicine. She … See Full Bio View all posts by Julie Corliss

About the Reviewer

Howard E. LeWine, MD, Chief Medical Editor, 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

Editor’s note: Second in a two-part series on friendship and neurodiversity. Click here for part 1 .

We all are different. We all are unique. This is cause to celebrate.

Yet for many children and families, the current landscape of friendships and social spaces can feel unwelcoming. Flexibility and inclusivity are often lacking, leaving little room for children who are neurodiverse, such as those who are on the autism spectrum or who have attention deficit hyperactivity disorder or intellectual disability.

There are many tools and organizations to help children with neurodevelopmental differences practice friendship-building skills and connect through social opportunities. But a larger community effort is needed, as well.

Below are some ways to welcome those who are neurodiverse into your social circle and activities. Friendship is a two-way street, of course, and all of us stand to gain in creating wider, more inclusive circles of friends. Everyone can be a friend; everyone deserves to have friends.

Start here: Understanding neurodiversity

Understanding neurodiversity — the different ways that people think, communicate, learn, and interact with their environment — is a crucial first step.

Becoming aware and accepting of these differences creates room for people who are neurodiverse to participate in social spaces just as they are. By making room for differing abilities, we demonstrate that we value authenticity and diversity.

It may help to know that:

• Many children who are neurodiverse engage in self-stimulatory behaviors like rocking back and forth, hand movements, or pacing. This may be a helpful way for them to self-soothe, or might satisfy sensory needs such as feeling too much stimulation or not enough stimulation.
• As with all children, behavior is communication and expresses desires, wants, needs, and dislikes.
• And as is true with many children, some behaviors, like silly noises or loud remarks, can also be ways of obtaining attention or communicating what is wanted, or not wanted, in a given situation.

What does it mean to be inclusive?

There is more to inclusion than being together.

Inclusion is the practice of making someone part of a group. It ensures that those who might otherwise be excluded, such as people with disabilities or members of marginalized groups, have the same rights, choices, and access to opportunities as others in the community.

Being in the presence of others opens the door to new friendships and social opportunities. But this alone is not true inclusion and does not promote belonging. Children with diverse abilities are often still stuck on the sidelines.

Sitting next to someone new at lunch or inviting someone to join a game or activity on the playground helps others feel invited and included. Parents, teachers, and other adults can help by modeling or encouraging warm, inclusive actions like these — and not just on the playground or at school.

Expanding from inclusion to belonging

Belonging goes one step further by ensuring that people feel valued and fully a part of their community. For children, cultivating belonging could mean

• going the extra mile after inviting a new friend to join a game of soccer at the park by making sure to pass them the ball.
• at the lunch table or at a birthday party, including a child with neurodiverse abilities into the conversation and creating the space for them to participate.

Actions like these help us recognize the value we each have to share. And, of course, it’s not only children who can hold out a hand. Together, by prioritizing genuine connections with people who are neurodiverse, learning and understanding one another’s needs, we can create a social landscape where everyone can belong.

How to be a good friend

Openness and kindness can foster a meaningful connection. Whether you’re a child or an adult, you can help through:

• Clear communication
  • Use clear and concise language and repeat information as needed.
  • Be open to different ways of connecting, such as through text messaging, online gaming, social media, or structured activities based on shared interests.
  • Outline plans in advance and be open to when a particular event, activity, or social interaction might need to be cut short.
• Awareness and openness
  • Be aware of sensory sensitivities and needs. Adjustments to lighting, noise, and seating can help create a more sensory-friendly environment.
  • Sometimes a consistent social space is most comfortable for people who are neurodiverse. Learn the types of socializing and social gestures your friend appreciates best.
  • Be welcoming to different ways of communicating, whether through signs, gestures, pictures, devices, or other equipment.
  • Focus on connection and shared interests rather than social convention.
• Listen and learn
  • Listen and learn how to support people who are neurodiverse — don’t assume!
  • Ask questions to understand social preferences and needs. Figure out together what fosters connection and comfort in your friendship.
  • Make space for people with diverse abilities to be themselves and be comfortable.
  • Be patient. Be flexible.

Make a commitment to wholeness

An inclusive community is one that values all people, and becomes whole by embracing its diversity and making all people feel like they belong. Schools, recreational programs, and community organizations all have a role in fostering inclusive social spaces and opportunities for people who are neurodiverse. And so do each of us.

About the Authors

Sydney Reynders, ScB, Contributor

Sydney Reynders, ScB, is a clinical research coordinator in the Boston Children’s Hospital Down Syndrome Program. She assists in research investigating educational, behavioral, and medical interventions in Down syndrome and other neurodevelopmental disorders. She received her … See Full Bio View all posts by Sydney Reynders, ScB

Nicole Baumer, MD, MEd, Contributor

Nicole Baumer, MD, MEd is a child neurologist/neurodevelopmental disabilities specialist at Boston Children's Hospital, and an instructor in neurology at Harvard Medical School. Dr. Baumer is director of the Boston Children's Hospital Down Syndrome Program. She … See Full Bio View all posts by Nicole Baumer, MD, MEd