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FITNESS HEALTHY-FOOD NATURAL

Curbing nearsightedness in children: Can outdoor time help?

Two children dressed in coats playing outdoors on a balance feature in a city playground with their mother watching

Turns out that when your mother told you to stop sitting near the TV or you might need glasses, she was onto something.

Myopia, or nearsightedness, is a growing problem worldwide. While a nearsighted child can see close objects clearly, more distant objects look blurry. Part of this growing problem, according to experts, is that children are spending too much time indoors looking at things close to them rather than going outside and looking at things that are far away.

What is nearsightedness?

Nearsightedness is very common, affecting about 5% of preschoolers, 9% of school-age children, and 30% of teens. But what worries experts is that over the last few decades its global prevalence has doubled — and during the pandemic, eye doctors have noticed an increase in myopia.

Nearsightedness happens when the eyeball is too large from front to back. Genes play a big role, but growing research shows that there are developmental factors. The stereotype of the nerd wearing glasses actually bears out; research shows that the more years one spends in school, the higher the risk of myopia. Studies also show, even more reliably, that spending time outdoors can decrease a child’s risk of developing myopia.

Why would outdoor time make a difference in nearsightedness?

While surprising, this actually makes some sense. As children grow and change, their lifestyles affect their bodies. A child who is undernourished, for example, may not grow as tall as they might have if they had better nourishment. A child who develops obesity during childhood is far more likely to have lifelong obesity. And the eyes of a child who is always looking at things close to him or her might adjust to this — and lose some ability to see far away.

Nearsightedness has real consequences. Not only can it cause problems with everyday tasks that require you to see more than a few feet away, such as school or driving, but people with myopia are at higher risk of blindness and retinal detachment. The problems can’t always be fixed with a pair of glasses.

What can parents do?

  • Make sure your child spends time outdoors regularly — every day, if possible. That’s the best way to be sure that they look at things far away. It’s also a great way to get them to be more active, get enough Vitamin D, and learn some important life skills.
  • Try to limit the amount of time your child spends close to a screen. These days, a lot of schoolwork is on screens, but children are also spending far too much of their playtime on devices rather than playing with toys, drawing, or other activities. Have some ground rules. The American Academy of Pediatrics recommends no more than two hours of entertainment media a day, and has a great Family Media Plan to help families make this happen.
  • Have your child’s vision checked regularly. Most pediatricians do regular vision screening, but it is important to remember that basic screening can miss vision problems. It’s a good idea for your child to have a full vision examination from an ophthalmologist or an optometrist by kindergarten.
  • Call your pediatrician or child’s eye doctor if you notice signs of a possible vision problem, such as
    • sitting close to the television or holding devices close to the face
    • squinting or complaining of any difficulty seeing
    • not being able to identify objects far away (when you go for walks, play I Spy and point to some far-away things!)
    • avoiding or disliking activities that involve looking close, like doing puzzles or looking at books, which can be a sign of hyperopia (farsightedness)
    • tilting their head to look at things
    • covering or rubbing an eye
    • one eye that turns inward or outward.

If you have any questions or concerns about your child’s vision, talk to your pediatrician.

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About the Author

photo of Claire McCarthy, MD

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

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FITNESS HEALTHY-FOOD NATURAL

Apps to accelerometers: Can technology improve mental health in older adults?

photo of a visiting nurse and a senior patient in the person's kitchen at home; nurse is showing how to book an online appointment using a smartphone

It can be devastating to watch older adults struggle with memory problems, low mood, anxiety, or a lack of motivation, particularly during times of physical distancing. With waiting lists for mental health appointments stretching for months, you may be wondering about alternatives.

Reaching out to family members or faith leaders may be helpful in talking through stressors. Alternatively, self-help books may provide skills or a new perspective for older adults choosing to keep their struggles private. But with the explosion of mental health mobile applications, telepsychiatry services, social media, and wearable technologies, where does technology fit in with treatment?

Combating ageist stereotypes

Seeing your loved one struggle with their computer, you may wonder whether to pursue technology-based treatments in the first place. Although older adults may be reluctant to use new technology due to stereotype threat (the fear of confirming negative stereotypes), a little help from loved ones can ease technology discomfort. The adoption of technology has grown rapidly over the past decade among older adults, and with it have come potential benefits to mental health, daily functioning, and quality of life.

Moving to virtual

A couple of years into the pandemic, older adults are increasingly seeing their doctors virtually. How well does this work for mental health? Thankfully, several studies have shown that virtual therapy is comparable to in-person treatment.

What about mobile apps that remove the human component? Here the data suggest that mobile apps can be complementary, although they are not sufficient as standalone treatments for mental illnesses.

Privacy

When navigating online treatments, you want to ensure that the platform used is HIPAA (Health Insurance Portability and Accountability Act)-compliant, which means your information is protected by law. Zoom and BlueJeans are HIPAA compliant; FaceTime and Skype are not. When using mental health mobile apps, read the privacy policies: red flags include sharing or selling information to third parties and using your information for advertisements.

Which apps can help older adults the most?

Navigating the explosion of mental health apps for online treatment can be tricky, as the landscape is changing quickly. For teletherapy services, Teladoc, K health, and Doctor on Demand are good places to start.

To supplement treatment of common mental illnesses, wellness apps developed by the federal government (including Mindfulness Coach, COVID Coach, and CBT-i Coach) can help teach skills, manage sleep, and track symptoms. Medisafe is the top-ranked medication reminder app for good reason: it has excellent privacy features (and with the premium subscription, you can receive medication reminders in celebrity voices).

Movement and mental health

We know that physical activity has numerous benefits on brain health in old age: it reduces anxiety and stress, it improves depressive symptoms, and it even strengthens learning and memory. Wearable technologies can play a role in helping older adults set physical activity goals. Through the use of smartwatches (which use accelerometers to keep track of movements), older adults can monitor how many steps they take, how many calories they burn, and even how well they sleep at night.

Wearable technologies have advantages for caregivers as well. They can be used to monitor their loved ones for wandering and falls, and they can alert them to changes in mood: a significant increase or decrease in usual activity levels may herald early signs of depression or anxiety.

Can smartphones be used to improve memory in older adults?

New research suggests that technology can indeed improve prospective memory, and help older adults with mild cognitive impairment continue their daily activities. Through the use of a personal assistant application on their smartphone (a digital voice recorder or reminder app), older adults who received reminders about events and activities experienced memory benefits and improvements in their activities of daily living.

Tips for using technology with older adults

While the benefits and harms of using technologies are still being studied, you can try the following:

  • Encourage older adults to try out applications that are research-informed, especially if they express interest.
  • If using a mobile health app, make sure to read the privacy policy. If using an online mental health platform, ensure it is HIPAA-compliant.
  • Try to set physical activity goals, as physical activity helps improve symptoms of almost every mental illness. Wearable technologies that count steps are a good place to start.
  • Modify device settings to improve comfort: this can include optimizing volume and font size to accommodate changes in vision or hearing.

If mental health technology doesn’t suit your loved one, that’s okay — technology is not always the answer. Treatments are most likely to work when patients believe it will help and can stick with it.

About the Author

photo of Stephanie Collier, MD, MPH

Stephanie Collier, MD, MPH, Contributor; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Stephanie Collier is the director of education in the division of geriatric psychiatry at McLean Hospital; consulting psychiatrist for the population health management team at Newton-Wellesley Hospital; and instructor in psychiatry at Harvard Medical School. … See Full Bio View all posts by Stephanie Collier, MD, MPH

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How does waiting on prostate cancer treatment affect survival?

close-up photo of a vial of blood marked PSA test alongside a pen; both are resting on a document showing the PSA test results

Prostate cancer progresses slowly, but for how long is it possible to put off treatment? Most newly diagnosed men have low-risk or favorable types of intermediate-risk prostate cancer that doctors can watch and treat only if the disease is found to be at higher risk of progression. This approach, called active surveillance, allows men to delay — or in some cases, outlive — the need for aggressive treatment, which has challenging side effects.

In 1999, British researchers launched a clinical trial comparing outcomes among 1,643 men who were either treated immediately for their cancer or followed on active surveillance (then called active monitoring). The men’s average age at enrollment was 62, and they all had low- to intermediate risk tumors with prostate-specific antigen (PSA) levels ranging from 3.0 to 18.9 nanograms per milliliter.

Long-term results from the study, which were published in March, show that prostate cancer death rates were low regardless of the therapeutic strategy. “This hugely important study shows quite clearly that there is no urgency to treat men with low- and even favorable intermediate-risk prostate cancer,” says Dr. Anthony Zietman, the Jenot W. and William U. Shipley Professor of Radiation Oncology at Harvard Medical School, anda radiation oncologist at Massachusetts General Hospital who was involved in the research and is a member of the Harvard Medical School Annual Report on Prostate Diseases editorial board. “They give up nothing in terms of 15-year survival.”

What the results showed

During the study, called the Prostate Testing for Cancer and Treatment (ProtecT) trial, researchers randomized 545 men to active monitoring, 533 men to surgical removal of the prostate, and 545 men to radiation.

After a median follow-up of 15 years, 356 men had died from any cause, including 45 men who died from prostate cancer specifically: 17 from the active monitoring group, 12 from the surgery group, and 16 from the radiation group. Men in the active surveillance group did have higher rates of cancer progression than the treated men did. More of them were eventually treated with drugs that suppress testosterone, a hormone that fuels prostate cancer growth.

In all, 51 men from the active surveillance group developed metastatic prostate cancer, which is roughly twice the number of those treated with surgery or radiation. But 133 men in the active surveillance group also avoided any treatment and were still alive when the follow-up concluded.

Experts weigh in

In a press release, the study’s lead author, Dr. Freddie Hamdy of the University of Oxford, claims that while cancer progression and the need for hormonal therapy were more limited in the treatment groups, “those reductions did not translate into differences in mortality.” The findings suggest that for some men, aggressive therapy “results in more harm than good,” Dr. Hamdy says.

Dr. Zietman agrees, adding that active surveillance protocols today are even safer than those used when ProtecT was initiated. Unlike in the past, for instance, active surveillance protocols now make more use of magnetic resonance imaging (MRI) scans that detect cancer progression in the prostate with high resolution.

Dr. Boris Gershman, a surgeon who specializes in urology at Harvard-affiliated Beth Israel Deaconess Medical Center, and is also an Annual Report on Prostate Diseases editorial board member, cautions that the twofold higher risk of developing metastasis among men on active surveillance may eventually translate into a mortality difference at 20-plus years.

“It’s important to not extend the data beyond their meaning,” says Dr. Gershman, who was not involved in the study. “These results should not be used to infer that all prostate cancer should not be treated, or that there is no benefit to treatment for men with more aggressive disease.” Still, ProtecT is a landmark study in urology, Dr. Gershman says, that “serves to reinforce active surveillance as the preferred management strategy for men with low-risk prostate cancer and some men with intermediate-risk prostate cancer.”

Dr. Marc B. Garnick, the Gorman Brothers Professor of Medicine at Harvard Medical School and Beth Israel Deaconess Medical Center, and editor in chief of the Annual Report, points out that nearly all the enrolled subjects provided follow-up data for the study’s duration, which is highly unusual for large clinical trials with long follow-up. The authors had initially predicted that patients from the active monitoring group who developed metastases at 10 years would have shortened survival at 15 years, “but this was not the case,” Dr. Garnick says. “As with many earlier PSA screening studies, the impact of local therapy on long-term survival for this class of prostate cancer — whether it be radiation or surgery — was again brought into question,” he says.

About the Author

photo of Charlie Schmidt

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

photo of Marc B. Garnick, MD

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

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A muscle-building obsession in boys: What to know and do

A shadowy, heavily-muscled superhero in a red cape strikes an action pose against a red and orange background; concept is body dysmorphic disorder

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

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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

photo of Howard E. LeWine, MD

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing

Howard LeWine, M.D., 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