Healthy aging and longevity Archive

They follow their own advice to enjoy lots of vegetables, legumes, lean protein, and a fruit-based dessert.

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Following a healthy diet is a proven and powerful way to lower your risk of heart disease. But do you ever wonder if doc-tors actually practice what they preach, especially with regard to their eating habits? While we obviously can't speak for all of them, four Harvard physicians with diverse ethnic backgrounds agreed to share examples of their favorite heart-healthy dinner menus.

Dr. Enrique Caballero, assistant professor of medicine

A native of Mexico, Dr. Caballero directs the Latino Diabetes Initiative at the Joslin Diabetes Center; his research interests include cardiovascular disease prevention.

Your BMI estimates your body fat better than the number on a scale. But a tape measure is an equally important tool.

As your BMI rises above 25, so does your risk for developing high blood pressure, diabetes, and cardiovascular disease.
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The body mass index (BMI), a measurement derived from the relationship between your weight and your height (see box), is a common way to estimate body fat. It's a simple, fast, and essentially free tool that enables doctors to help identify people who might be at risk for health problems—including cardiovascular disease—that are linked to excess body fat.

People who do volunteer work may reap benefits beyond the satisfaction of helping others.

Doing volunteer work may give you a greater sense of purpose in life—a positive emotion that’s been linked to a lower risk of heart disease.
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If you volunteer on a regular basis, perhaps you've experienced the emotional rewards of donating your time. What you might not realize, however, is that volunteering may offer some added advantages for your heart.

Cheap, mid-priced, and Cadillac. Which one is for you?

Option two

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The advice to eat chocolate should be taken with a grain of salt.

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Like bees swarming a melting candy bar, the media buzz around the purported health benefits of chocolate has been hard to ignore. The possibility that such a sumptuous treat might actually be good for your heart is very sweet news, indeed.

But there's a lot more to this story that we need to understand before going hog wild in the candy aisle, says Dr. Howard Sesso, associate professor in the division of preventive medicine at Harvard-affiliated Brigham and Women's Hospital. "Simply recommending that people eat dark chocolate as a way of improving health is very misleading, since chocolate products tend to have a significant amount of fat, sugar, and calories." Instead, he and colleague Dr. JoAnn Manson are embarking on the Cocoa Supplement and Multivitamin Outcomes Study (COSMOS), a four-year trial involving 18,000 participants that is designed to tease out the intricacies of chocolate's health-promoting nutrients (www.cosmostrial.org).

 Image: Thinkstock

Q. I heard regular aerobic exercise is better for the brain than strength exercises (resistance training). Is that true?

A. The study you probably heard about involved rats, not humans. The rats were made to engage each day in sustained aerobic exercise, high-intensity interval training, or resistance training, or they were allowed to just be sedentary. At the end of the study, the researchers examined the rats' brains. The rats doing regular aerobic exercise had more brain cells than the sedentary rats. However, the rats made to perform high-intensity interval training or the ones doing resistance training did not have more brain cells than the sedentary rats.

Look for roomy toe boxes, soft inner soles, and sturdy heel counters to give you a better fit and help you stay on the go.

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Bunions, hammertoes, corns, and calluses all make shoe buying a chore. But the wrong shoes can impair your mobility and independence. "Pain from any of those conditions can alter your gait," says Dr. James Ioli, assistant professor of orthopedic surgery at Harvard Medical School.

Corns and calluses

Shoe hunt

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News Briefs

Here's something to jolt you off the couch and get you exercising: a study published Feb. 10, 2016, in Neurology links poor fitness levels in middle age to brain shrinkage 20 years later. Researchers, including some from Harvard Medical School, looked at the cardiovascular fitness of about 1,100 people, average age of 40, who were free of dementia and heart disease. The participants had taken treadmill tests to determine their cardiovascular fitness levels based on how much oxygen their bodies used during exercise. About 20 years later, participants took another treadmill test and underwent neuropsychological testing and MRI brain scans. The scans showed that people who were unfit in middle age had smaller brains in older age, compared with people who were fit in middle age. This doesn't prove that inactivity in midlife causes brain shrinkage. But previous studies have shown that regular, moderate-intensity exercise may be associated with slower brain aging.