Staying Healthy Archive

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Wearable activity or fitness trackers and smartphone apps are helpful for goal setting and measuring how many steps you take or how much time you spend exercising. But do they motivate you to become more active? Probably a little, finds a review of randomized controlled trials published online Dec. 21, 2020, by the British Journal of Sports Medicine. Researchers combed through 28 studies that included a total of more than 7,400 adults (ages 18 to 65) who used fitness trackers or apps for an average of three months. Compared with people who did not use the devices, people who did increased their activity by 1,850 steps per day. Apps and trackers that included prompts and cues to stay active appeared to be most effective. If your smartphone doesn't already have a built-in basic fitness tracker that counts your steps and calories burned, you can find an app that does. Some are free. Fancy tracking devices, with all the bells and whistles, including heart rate monitors and cellphone capability, cost as much as $1,300. But even the simplest ones help remind you to move.

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It's more accessible than ever before, but is it the right medicine for you?

Medical marijuana — also referred to as medical cannabis — has enjoyed a boom in recent years. More states have legalized it, more products are available, and more people have turned to it for help, especially older adults.

A study in the April 2020 JAMA Internal Medicine found that the number of adults ages 65 and older using medical cannabis increased from 2.4% to 4.2% between 2015 and 2018.

Ask the doctors

Q. I'm in my early 50s and am considering a knee replacement for severe arthritis. I've heard that doctors typically encourage people to wait until after age 60 to perform this procedure. Should I wait to have the surgery?

A. Doctors do sometimes recommend that people under age 60 wait to undergo a knee replacement procedure, because these artificial joints typically last only about 15 to 20 years. If someone younger gets the procedure, it's likely that the joint will need to be replaced again down the line. That said, the decision to have a joint replacement really depends more on your individual circumstances, such as how much pain you have, whether the problem is causing you significant disability, and your overall health, not just how old you are. Some people can safely wait until they are 60 to undergo the procedure without a problem. For others, waiting too long to have the knee replaced might not be advised. For example, if the knee joint deteriorates too much, that may make the surgery to replace it more challenging. Over all, most people (80% to 90%) who do opt for a knee replacement are happy with the results of the procedure, but it's best to discuss the pros and cons with your doctor.

Inaccurate health information is pervasive. Here's how to find out if what you're reading is true.

From conspiracy theories about COVID-19 to unsubstantiated or even dangerous product claims, false health information is everywhere these days. This includes both misinformation (incorrect statements spread by someone who essentially doesn't know better) and disinformation (false information being spread deliberately by a bad actor to promote an agenda).

"Health misinformation and disinformation have always been with us. It's nothing new," says Kasisomayajula Viswanath, Lee Kum Kee professor of health communication at the Harvard T.H. Chan School of Public Health. "We had snake-oil salesmen when advertising began. But what's different this time around is the scale." Both mass media and social media are allowing bad information to reach large swaths of people quickly, making it difficult for many people to differentiate the good from the bad.

The yoga routine "ten churnings" can be done on its own to help you get moving in the morning or to counteract stiffness after sitting for too long. In about six minutes, the routine can loosen up your joints and serve as a warm-up to a longer exercise session. To learn additional intermediate yoga exercises, visit: www.health.harvard.edu/iy

Losing weight sometimes takes experimentation. If you give a diet your best shot and it doesn't work long term, maybe it wasn't the right one for you, your metabolism, or your situation. Genes, family, your environment — even your friends — influence how, why, what, and how much you eat, so don't get too discouraged or beat yourself up because a diet that "worked for everybody" didn't pay off for you. Try another, keeping in mind that almost any diet will help you shed pounds — at least for a short time.

Here's a look at three common diet approaches.

Regular physical activity promotes general good health, reduces the risk of developing many diseases, and helps you live a longer and healthier life. For many of us, "exercise" means walking, jogging, treadmill work, or other activities that get the heart pumping.

But often overlooked is the value of strength-building exercises. Once you reach your 50s and beyond, strength (or resistance) training is critical to preserving the ability to perform the most ordinary activities of daily living — and to maintaining an active and independent lifestyle.

Stress eating can ruin your weight loss goals – the key is to find ways to relieve stress without overeating

There is much truth behind the phrase "stress eating." Stress, the hormones it unleashes, and the effects of high-fat, sugary "comfort foods" push people toward overeating. Researchers have linked weight gain to stress, and according to an American Psychological Association survey, about one-fourth of Americans rate their stress level as 8 or more on a 10-point scale.

In the short term, stress can shut down appetite. The nervous system sends messages to the adrenal glands atop the kidneys to pump out the hormone epinephrine (also known as adrenaline). Epinephrine helps trigger the body's fight-or-flight response, a revved-up physiological state that temporarily puts eating on hold.