There’s a staggering amount of evidence to show that exercise is good for you. Among other benefits, people who exercise are healthier, think more clearly, sleep better, and have delayed onset of dementia. Regular exercise boosts energy levels; although some people assume that working out is tiring, in fact, it boosts energy, especially in sedentary people—of whom there are many. A recent study showed that 25 percent of Americans don’t get any exercise at all. Just by exercising twenty minutes a day three days a week for six weeks, persistently tired people boosted their energy.
