Physical activity can certainly change your physique, but the latest research shows it can change your DNA as well, even after a single workout. Scientists monitoring volunteers who exercised to their maximum activity levels on a stationary bike reported that working out muscle triggers genes that prime muscle cells to soak up nutrients and enzymes in order to burn calories and generate energy. Each bout of exercise can make the entire process more efficient, which means getting off the couch really does a body good.
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