Month: November 2022

Are you having a little trouble hearing conversations? If so, you’re not alone. An estimated 23% of Americans ages 12 and older have hearing loss. Although most of those people have mild hearing loss, for people ages 80 years and older, it’s more common for hearing loss to be moderate to severe than mild.

But not only is moderate to severe hearing loss disruptive to one’s life, it also makes you more likely to develop dementia. A new study helps explain why — and what you can do about it.

What did the new study look at and find?

A study published in JAMA focused on a sample of adults in the United States from the National Health and Aging Trends Study, which follows Medicare beneficiaries. The participants sampled were 70 or older.

The researchers found that about 33% of participants had normal hearing, 37% had mild hearing loss, and 30% had moderate to severe hearing loss. Dementia occurred least often among those with normal hearing (6%), more often among those with mild hearing loss (9%), and most often among those with moderate to severe hearing loss (17%). That’s a large increase in risk, particularly for those whose hearing loss is moderate to severe.

What else to know about this study

The study sample was selected to make it possible to analyze subgroups by age and apply findings to a diverse population. The sample included additional participants ages 90 years and older, and additional participants who identified as Black. Of the 2,413 total participants, 53% were ages 80 years and older, 56% were female, 19% were non-Hispanic Black, 4.5% were Hispanic, and 74% were non-Hispanic white.

Also, unlike previous research, this study looked objectively at hearing loss and dementia. Prior research had shown that hearing loss is thought to account for about 8% of all dementia cases worldwide. Exactly why the connection exists is not known.

It’s important to note that most large studies that found this link were based on questionnaires that people fill out. In other words, no one actually measured the hearing of those participating in the study to make sure that they had hearing loss — or that their hearing was really normal.

In this new study, however, the investigative team used an electronic tablet-based audiometer to evaluate participants’ hearing for four pure tone frequencies that are most important for understanding speech. So, for the first time in a large study, there was objective measurement of hearing loss.

How do hearing aids reduce the risk of dementia?

If you have hearing loss, does that mean you’re doomed to develop dementia? Not at all. This study found that those with moderate to severe hearing loss could significantly reduce their risk of dementia simply by using hearing aids.

This research helps us understand why hearing loss causes dementia. Here’s the connection:

There is increasing evidence that the more the brain is stimulated, the less likely it is that dementia will develop. When there is hearing loss, auditory stimulation is reduced. This, by itself, likely increases dementia risk. But even more important is that when an individual suffers from moderate to severe hearing loss, they are less likely to participate in social activities. Perhaps they are embarrassed about their hearing loss. Or they may simply find it unrewarding to attend a social event when they cannot hear what is going on.

It turns out that social activities are one of the best ways to stimulate the brain, as there is evidence that our brains evolved to facilitate social behavior. Given all this information, you won’t be surprised to learn that reduced social activity has been linked to cognitive decline. Thus, this new study provides additional evidence that the reason hearing loss increases the risk of dementia is because hearing loss reduces brain stimulation — both directly and through reduced social interaction.

What to do if you have hearing loss

Don’t let hearing loss raise your risk of dementia.

• Keep your ears clean. (But remember, never put anything in your ears smaller than your elbow. Ask your doctor if you’re not sure how to clean your ears.)
• If you can’t hear and you don’t have hearing aids, get them. Hearing aids now available over the counter can help many people with mild to moderate hearing loss.
• If you have hearing aids, wear them.
• If your hearing aids aren’t working, get them fixed.
• Don’t be passive — ramp up your social life and other activities.

All these things will help to reduce your risk of dementia. And you might just find that, despite some hearing loss, you’re enjoying life more.

About the Author

Andrew E. Budson, MD,

Contributor; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Andrew E. Budson is chief of cognitive & behavioral neurology at the Veterans Affairs Boston Healthcare System, lecturer in neurology at Harvard Medical School, and chair of the Science of Learning Innovation Group at the … See Full Bio View all posts by Andrew E. Budson, MD

We all want our child to have friends. We want them to be happy, and to build the social skills and connections that will help them now and in the future.

Sometimes, and for some children, making friends isn’t easy. This is particularly true after the COVID-19 pandemic. Because of isolation and remote school, many children either didn’t learn the skills they need to make friends — or those skills got rusty.

Here are some ways parents can help.

Start at home: Learning relationship skills

Making and keeping friends involves skills that are best learned at home with your family. Some of them include:

• Empathy. Make sure that everyone in the family treats each other fairly and with kindness. Sometimes we turn a blind eye to sibling fights, or feel justified in snapping at our partner when we have had a long day. No matter what we say, our children pay attention to what we do.
• Curiosity about others. Make a family habit of asking each other about their day, their interests, their thoughts.
• Communication skills. These days, devices endanger the development of those skills. Shut off the devices. Have family dinners. Talk with each other.
• Cooperation. Do projects, play games, and do chores as a family. Work together. Help your child learn about taking turns and valuing the input of others.
• Regulating emotions. It’s normal to have strong feelings. When your child does, help them find ways to understand big emotions and manage them.
• Knowing when and how to apologize — and forgive. This really comes under empathy, but teach your child how to apologize for their mistakes, make amends, and forgive the mistakes of others.

All of these apply also to how you and your partner talk about — or with — other people in front of your children, too!

Be a good role model outside the home, too

When you are outside your home, be friendly! Strike up conversations, ask questions of people around you. Help your child learn confidence and strategies for talking to people they don’t know.

Make interactions easier

Conversations and interactions can be easier if they are organized around a common interest or activity. Here are some ways parents can help:

• Sign your child up for sports or other activities that involve their peers. Make sure it’s something they have at least some interest in doing.
• Get to know the parents of some of your child’s peers — and invite them all to an outing or meal. It could allow the children to get to know each other while taking some of the pressure off.
• When planning playdates, think about fun, cooperative activities — like baking cookies, or going to a park or museum.

Keep an eye on your child — but don’t hover

Ultimately, your child needs to learn to do this — and you don’t want to embarrass them, either. The two exceptions might be:

• If the children aren’t interacting at all, you might want to suggest some options for activities. Facilitate as necessary, and step back out again.
• If there is fighting or meanness on either side, you should step in and make it clear that such behavior isn’t okay.

Keep an open line of communication, and be supportive

Talk with your child regularly about their day, about their interactions, and how things made them feel. Listen more than you talk. Be positive and supportive. Remember that part of being supportive is understanding your child’s personality and seeing the world from their eyes. You can’t make your child someone they are not.

If your child keeps struggling with making friends, talk to your doctor

All parents need help sometimes — and sometimes there is more to the problem than meets the eye. This is particularly true if your child has ADHD or another diagnosis that could make interactions more challenging.

For information on supporting friendships at different ages, check out the advice from the American Academy of Pediatrics.

Follow me on Twitter @drClaire

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

Infertility is a remarkably common problem. It affects up to one in five people in the US who are trying to become pregnant, and 186 million people worldwide. A thorough medical evaluation can spot key contributing issues in many cases — whether in a woman, a man, or both partners — that might respond to treatment, or call for assisted reproductive tools like in vitro fertilization (IVF).

But in a substantial number of cases, no cause is found for infertility. Could inflammation be to blame for some of those cases, as recent research suggests? And if so, will an anti-inflammatory diet or lifestyle boost fertility?

Exploring the connection between inflammation and infertility

Chronic inflammation has been linked to many health conditions, such as cardiovascular disease, stroke, and cancer.

While its importance in infertility is far from clear, some evidence supports a connection:

• The risk of infertility is higher in conditions marked by inflammation, including infection, endometriosis, and polycystic ovary syndrome.
• Bodywide (systemic) inflammation may affect the uterus, cervix, and placenta, thus impairing fertility.
• Women with infertility who had IVF and followed an anti-inflammatory diet tended to have higher rates of successful pregnancy than women who did not follow the diet.

Could an anti-inflammatory diet improve fertility?

It’s a real possibility. Decades ago, researchers observed that women following a prescribed fertility diet ovulated more regularly and were more likely to get pregnant. Now a 2022 review of multiple studies in Nutrients suggests that following an anti-inflammatory diet holds promise for people experiencing infertility. The research was done years apart, but the diets in these two studies share many elements.

The 2022 review found that an anti-inflammatory diet may help

• improve pregnancy rates (though exactly how is uncertain)
• increase success rates of assisted reproductive measures, such as IVF
• improve sperm quality in men.

The authors add that improving diet might even reduce the need for invasive, prolonged, and costly fertility treatments. However, the quality of studies and consistency of findings varied, so more high-quality research is needed to support this.

Will adopting an anti-inflammatory lifestyle improve fertility?

While recent research is intriguing, there’s not enough evidence to show that an anti-inflammation action plan will improve fertility. A plant-based diet such as the Mediterranean diet, and other measures considered part of an anti-inflammatory lifestyle, improve heart health and have many other benefits.

It’s not clear if this is directly due to reducing inflammation. But this approach comes with little to no risk. And abundant convincing evidence suggests it can improve health and even fight disease.

What is an anti-inflammatory lifestyle?

Health experts have not agreed on a single definition. Here are some common recommendations:

• Adopt a diet that encourages plant-based foods, whole grains, and healthy fats like olive oil while discouraging red meat, highly processed food, and saturated fats.
• Stop smoking or vaping.
• Lose excess weight.
• Be physically active.
• Get enough sleep.
• Treat inflammatory conditions, such as rheumatoid arthritis or allergies.
• Avoid excessive alcohol consumption.
• Control stress.

Anti-inflammatory medicines may help in certain situations — for example, treatments for autoimmune disease. However, they are not warranted for everyone. And for people trying to conceive, it’s far from clear that any potential benefit would exceed the risk of side effects for parent and child.

The bottom line

It’s possible that inflammation plays an important and underappreciated role in infertility and that an anti-inflammatory diet or lifestyle could help. But we need more evidence to confirm this. Until we know more, taking measures to improve your overall health and possibly reduce chronic inflammation makes sense.

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

Understandably, the sensitive topic of weight in children and teens often focuses on the health costs of overweight and obesity. Sometimes, though, a child needs to gain some weight. And while there are lots of ways to make that happen, not all of them are healthy.

What to do if your child seems underweight

If you are worried about whether your child needs to gain weight, it’s very important to check with your doctor before getting to work on fattening them up. It’s entirely possible that your child’s weight is absolutely fine. Given that one in five children in the US is obese and another one in six is overweight, it’s easy to see how a parent might think their child is too thin in comparison. One way to find out if your child’s weight is healthy is to check their body mass index, a calculation using height and weight that is used for children ages 2 and up.

Losing weight or being underweight can be a sign of a medical or emotional problem, so be sure to let your doctor know about your concerns. They may want to see your child to help decide if any evaluations are needed. If your child is less than 2 years old, it’s particularly important that you check in with your doctor about weight concerns, and follow their advice exactly.

Choosing healthy foods when a child needs to gain weight

If your child is older than 2 and the doctor agrees that gaining weight is a good idea, the best way to approach it is by using healthy foods and healthy habits.

Three ways to help encourage healthy weight gain:

• Give your child three meals (breakfast, lunch, and dinner) and two healthy snacks (mid-morning and mid-afternoon). If your child eats dinner early, you could consider a small snack before bedtime. Try to avoid snacks in between or drinking anything other than some water; you want them to be hungry when you give them food.
• Offer healthy high-calorie foods. Think in terms of healthy fats and protein. Some examples are:
  • nuts and nut butters, as well as seeds like pumpkin or sunflower seeds
  • full-fat dairy, such as whole milk, heavy cream, cream cheese, and other cheeses
  • avocados
  • hummus
  • olive oil and other vegetable oils
  • whole grains, such as whole-wheat bread or granola (look for granola sweetened with juice or fruit rather than sugar)
  • meat if your diet includes it
• Every time you prepare a meal or snack, think about how you might add some calories to it. For example, you could add some extra oil, butter, or cheese to pasta — or some nut butter on a slice of apple or piece of toast.

Three traps to avoid:

• Giving your child more sweets or junk food. It’s tempting, as children generally want to eat sweets and junk food, and both have calories. But they aren’t healthy foods, and it’s not a good idea to build a sweets and junk food habit.
• Giving your child unlimited access to food. This, too, is tempting — after all, you want them to eat! But not only does that make it hard to be sure that what they are eating is healthy, snacking can make them less hungry when it’s time for an actual meal.
• Letting your child fill up on milk and other drinks — including nutritional supplement drinks. This, too, makes it less likely that they will eat at mealtime, and they are unlikely to get all the nutrients they need. Don’t give your child nutritional supplements unless your doctor advises you to do so.

Be sure you schedule regular check-ins with your doctor to monitor your child’s progress. Hopefully your child will soon be at a healthier weight that helps them to thrive as they grow.

Follow me on Twitter @drClaire

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