Sylvester Williams, a Denver Broncos nose guard, nabs Isaiah Crowell of the Cleveland Browns last October. If measured by BMI, Williams is obese. AAron Ontiveroz/Denver Post via Getty Images hide caption

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Models wear creations for Masha Ma's fall-winter 2015-2016 ready to wear fashion collection during Paris fashion week, Paris, France, on March 11. Under proposed legislation in France, models would have to get routine checkups. Christophe Ena/AP hide caption

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According to the Bureau of Labor Statistics, 47 percent of moms were in the labor force in 1975. By 2008, that number rose to 71 percent. James Tutor/iStockphoto.com hide caption

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