Staying Healthy Archive

News briefs

A warning for people who take the dietary supplement biotin (vitamin B7): the FDA says taking too much of the vitamin may interfere with the results of some lab tests. Biotin is often included in multivitamins, prenatal vitamins, and dietary supplements marketed to improve nails, hair, and skin. While there's no recommended dietary allowance established for biotin, the adequate intake value is 30 micrograms per day for people ages 19 or older and for pregnant teens and women. But biotin supplements may contain up to 650 times the adequate intake. The FDA warns that taking too much biotin can interfere with lab tests, such as hormone tests and tests for markers of heart attacks (like troponin). An inaccurate lab result can have dangerous consequences. For example, the FDA reports that one person taking high levels of biotin died after a falsely low troponin test result. The FDA also notes it's seeing an increase in reports of biotin interference in lab work. The bottom line: Always tell your doctor which supplements you're taking. And remember, most people can get enough biotin from a healthy diet that includes seeds, nuts, meat, fish, eggs, and certain vegetables (such as spinach and broccoli).

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A French study published Aug. 21, 2018, in The Journal of the American Medical Association suggests that the more steps you take to boost your heart health, the lower your risk for developing dementia. Researchers evaluated health and lifestyle data for more than 6,000 men free of dementia and heart disease men in their 70s to see how they were doing when it came to following seven steps recommended by the American Heart Association: not smoking; controlling weight; getting regular physical activity; eating a healthy diet (that included fish twice a week or more, and fruits and vegetables at least three times per day); and maintaining healthy blood pressure, cholesterol, and blood sugar levels. Researchers also conducted psychological testing on participants at various times. After eight years, it appeared that men who followed five to seven of the healthy habits had the least risk (8%) for developing dementia during the study, compared with men who followed two or fewer habits (they had a 13% risk). The study was observational and doesn't prove that following heart-healthy habits will lower your dementia risk. But many other studies have made similar connections. The takeaway: It's not too late to try to prevent dementia.

The world looks very different at 3 a.m. when you're lying in bed staring at the ceiling or the clock. "How will I make it through tomorrow without any sleep?" you worry. You may wonder how to sleep better every night. If you regularly can't get to sleep - or stay asleep - and it's affecting you during the day, then you may have insomnia.

Prescription or over-the-counter sleep aids can help you drift off, but these drugs also have side effects. These include morning drowsiness, which can make activities like driving or using machinery dangerous, and an increased risk for falling. There are other ways to sleep better than medications.

Skipping warm-ups and lifting too much can lead to injury.

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Exercising is one of the best things you can do for your health, and you deserve an enthusiastic pat on the back for any amount of physical activity you're doing. But if you're performing your exercises the wrong way, you could be hurting, not helping your body.

One of the biggest exercise errors is using improper technique. You risk back injury if you arch your back while doing planks or push-ups, and knee injury if you bend too deeply in a lunge or squat (see "Move of the month").

Trendy new options are fresh and appealing, but they may not be good for you.

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The. hot item in coffee shops isn't just coffee. Now, along with inventive brews, many shops are offering fresh gourmet noshes that rival food at chic cafes. That means you'll find treats and dishes with all the buzzwords attached, including "house-baked," "handcrafted," and "locally sourced." It also means you may be tempted to eat something that's unhealthy, especially if you're ordering quickly because eight people are in line behind you.

New on the menu

More coffee shops are ditching prepackaged pastries and sandwiches, and operating tiny kitchens that crank out breakfast with flair. For example:

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Are you putting off exercise because you think you need to jump into a rigorous routine? An observational study published Aug. 8, 2018, in the Journal of the American Heart Association suggests that even light physical activity, combined with less time sitting, is associated with signs of better heart and blood vessel health among older adults. Researchers analyzed health information for more than 1,600 people ages 60 to 64 who underwent clinical assessments and wore heart and physical activity monitors for five days. Participants' activity ranged from light intensity — like stretching and golfing — to moderate-to-vigorous activity, like brisk walking, dancing, and lawn mowing. Scientists also looked at participants' blood markers for heart and blood vessel disease, including the inflammation markers C-reactive protein and interleukin-6. The results: compared with being sedentary, people with light to moderate activity levels had more favorable biomarker profiles. The takeaway: lots of research has shown that replacing sedentary time with any amount of physical activity is linked to better health, so don't let high activity goals keep you from getting off the couch.

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If your grandkids urge you to indulge them in a popular new snack at the mall, just say no. The FDA is warning that consuming products with liquid nitrogen added at the last minute can lead to injury. The products are marketed under names such as "Dragon's Breath" and "Nitro Puff." They're cheese puffs or cereal pieces that are frozen in liquid nitrogen and then dipped in a special sauce. When you put them in your mouth, the products release vapor that looks like smoke. Liquid nitrogen is also added to some cocktails to make them look like they're emitting fog. But the FDA says all of these products can cause severe damage to skin and internal organs and may cause breathing problems. The agency advises you to avoid the products.

Here's what you need to keep you exercising.

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Perhaps the biggest physical challenge for older men is maintaining muscle mass and strength. On average, men can expect to lose up to 5% of their muscle mass each decade after age 30.

But regular strength training can slow that loss and even increase muscle mass into your 90s, according to Dr. Steven Makovitch, an instructor in physical medicine and rehabilitation at Harvard-affiliated Spaulding Rehabilitation Hospital. "Increased muscle mass has benefits beyond physical strength, too," he says. "Staying fit can reduce your fear of falls, increase confidence, and help you sleep better."

In the journals

Previous research has linked excess body fat with a higher risk of cognitive decline. In the past, most studies have gauged body fat based on body mass index (BMI). However, waist size may be a better way to predict possible cognitive impairment among older adults, according to a study in the Sept. 14, 2018, issue of the British Journal of Nutrition.

Researchers examined health data on 5,186 people ages 60 and older. They found that a larger waist size was associated with reduced performance in such mental abilities as attention and visuospatial skills (the ability to perceive the differences and similarities between objects). The study participants also scored lower on memory tests.