We’re a nation of fatties, in no small part because we get half as much exercise as we should.
The typical American spends just two hours a week exercising, according to researchers at Penn State and the University of Maryland, even though the U.S. Centers for Disease Control and Prevention recommends adults age 18 to 64 get four hours of exercise per week. That could help explain why a separate study by Duke University finds 42 percent of the population could be obese by 2030, adding nearly $550 billion to the nation’s healthcare tab.
Ideally, the CDC says, we should get 2.5 hours of moderate exercise — brisk walking, riding a bike on level ground, that sort of thing — each week. We ought to spend another 75 minutes per week engaging in vigorous activity like running or shooting hoops.
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