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It's also a bad hypothesis because the article is talking about changes that occurred over the last 10 years, and childhood obesity rates (including teenagers) have stabilized over the last 10 years.

It seems a little silly to me. Especially because when we talk about obesity, most people visualize morbid obesity. There are plenty of textbook definition "obese" people who can still attract mates.

I think the point is that obesity causes infertility....

HN's misogynist underbelly is showing particularly badly here.