exercise—despite its manifold benefits—requires overriding deep, natural instincts. So instead of shaming and blaming people who avoid exertion, we should help each other choose to exercise. But as the last few decades have shown, we won’t succeed solely by medicalizing and commodifying exercise; instead, we should treat exercise the way we treat education by making it fun, social, emotionally worthwhile, and something that we willingly commit ourselves to do.

