Is an “exercise pill” coming your way?
Researchers are developing pills that provide many of the effects of exercise. But none provides all the benefits of physical activity.
Image: Dmitry Fischer/ Thinkstock
Health experts are fond of saying, "If exercise were a pill, everyone would want to take it." And scientists seem to agree. Over the past several years there has been an accelerated push to develop drugs that mimic the effects of exercise. The promise is enormous—such medications could be a boon to people whose physical activity is limited by medical conditions or injuries. They could provide a head start for people who are beginning an exercise program. They could also confer the health benefits of exercise on healthy people who can't fit physical activity into their schedules or just don't want to get off the couch.
"While the idea of an exercise pill is a good one, it has many, many limitations," says Dr. Laurie Goodyear, head of the Section on Integrative Physiology and Metabolism at Harvard-affiliated Joslin Diabetes Center. Just as a vitamin capsule won't provide all the benefits of a healthy diet, a single pill is unlikely to provide all the benefits of exercise.
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