Staying Healthy Archive

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:

News briefs

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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News briefs

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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.

Ask the doctors

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Q. I have terrible skin, and a friend recently recommended that I eliminate gluten from my diet to help manage my condition. Will this work?

A. Not necessarily. Gluten has gotten a lot of attention in recent years. Some people believe that eating gluten can inflame the skin and, therefore, cutting it out will help relieve red, inflamed skin or other skin conditions, such as psoriasis or eczema.

It may take a little more effort, but some simple strategies can help you meet your recommended intake of veggies in the colder months.

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In the summer, vegetables are plentiful. The supermarket shelves — and maybe even your own garden — are overflowing with zucchini and squash, tomatoes and asparagus. But as we head into the colder winter months, the offerings may be a little less inspiring.

"With summer vegetables becoming more expensive in the winter, people's eating variety may shrink," says Teresa Fung, adjunct professor in the Department of Nutrition at the Harvard T.H. Chan School of Public Health. "And when variety shrinks, often quantity shrinks as well."

Research we're watching

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The best dietary strategy when it comes to carbohydrate intake could be neither high-carb nor low-carb, but rather moderation. A study published online August 16 by The Lancet Public Health found that both high- and low-carbohydrate diets were associated with earlier death. But people who got about half to 55% of their calories from carbohydrates — which is considered a moderate amount — lived longer.

The research involved more than 15,000 adults ages 45 to 65 who were involved in the Atherosclerosis Risk in Communities study. Participants filled out a dietary questionnaire when they enrolled in the study, which began in 1987. Researchers then looked for links between what participants ate and their death from any cause over a median follow-up period of 25 years.