PositiveThe New York Times Book ReviewPetrzela’s book continued to haunt me after I put it down. I was embarrassed by the number of fitness brands that I recognized in it, and I winced at how much money I’ve forked out for them. But I wish I’d come out with a better understanding of how the United States compares with other countries in this regard. Petrzela makes several observations about America that could have benefited from more context.