How Fitness Took Over Our Brains

Blame it on Jack LaLanne. Blame it on Jane Fonda. Blame it on every Hollywood movie ever made and every garment sold by LuluLemon. Blame it on our willingness to buy into the notion that to look good is to feel good is to be good. In her recently published book, “Fit Nation: the Gains and Pains of America’s Exercise Obsession,” Natalia Mehlman Petrzela lays out the history (some admirable, some twisted, most commercial) of how our embrace of fitness evolved from whatever to everything. Read a review of the book in the New York Times.