Does wearing tighty whities kill your sperm count?

Boxers versus briefs: it’s a personal question that might have big consequences for your future. That’s because warming up your testicles can seriously screw up sperm development–so seriously, in fact, that polyester ball cozies have been shown to be an effective form of birth control. So if briefs are (literally) hotter than boxers, they may reduce your fertility. But before you go burn your briefs, check out the study below. These scientists actually tested the testicular temperatures of

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