Bad Side Effects of Tight Briefs Underwear. One of the contentious subtopics in the endless debate on which is better between boxers vs. briefs is whether tight briefs underwear is bad for a man’s fertility particularly his ability to produce healthy sperm.
Said debate is exemplified in these two Yahoo! Answers answers with one on the side of “tight briefs are bad for your health”:
From Metal Nettle: Close fitting underwear can affect your fertility if it keeps your testicles above their normal temperature by holding them too close to your body, they hang free below your body for a reason.