Truth or Myth: Does wearing briefs decrease sperm count?

I have heard that wearing briefs decrease sperm count and that boxers are better. Any truth to this?

What Others are Saying

There is a reason why testes

There is a reason why testes are located outside of the body. It's also a good idea to try not to wear tight pants or got saunas and hot tubs if you think or know that low sperm count is a factor for your fertility issues.