Tight clothes, too many hot tubs, and a computer on your lap really can harm fertility. "The testes don't like heat. That's why they're out of the body," says Dr. Thomas J. Walsh. Exposing the testicles to too much heat has been shown to temporarily reduce sperm count. So, if you are looking to have a kid, cut back on sauna time. No need to switch underwear type though – it has also been shown that this change is unlikely to make a difference.
Credit: Getty Images
Powered By ZergNet
Gear of the Year
102 of the Best Tools, Toys & Tech
Plus: The Woman Who Bails Out the NFL's Bad Boys
ON NEWSSTANDS NOW
The Woman Who Bails Out the NFL's Bad Boys
Jalen Rose: NBA's Inside Man
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.