Exercise at This Time of Day May Be Better
Researchers at Northwestern University have discovered that the human body may respond better to exercise during the day than at night. According to researchers, all cells in the body—including muscle cells—contain a 24-hour internal clock, or “circadian rhythm,” that helps regulate their activity. Scientists found that muscle cells function more efficiently during an organism’s normal wake hours—and for humans, that’s daytime.
For the study, the team looked closely at the effects of exercise on muscle tissue in mice. They found that when mice—which are nocturnal—exercised at night, their muscles responded and adapted better than during the day. Results of the study are to be published in Cell Metabolism.
More research is needed, but these findings may have other implications besides determining the best time to work out. Discovering ways to optimize cell function could one day play a role in reducing the risk for diabetes, cancer, and other health problems.
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