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
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.
Off the Grid With the Ultimate Globe Trotter
Plus: Inside Football's Big Data Revolution
ON NEWSSTANDS NOW