How Heat May Affect Male Infertility
You’ve probably heard that wearing tight underwear can be bad for your fertility. The fact is that heat has a negative impact on male fertility, so the advice to avoid tighty whities is essentially right. High temperatures have an effect on sperm health, specifically sperm motility (movement), which makes it harder for sperm to fertilize an egg. This is why the testicles are located away from the body; sperm should be about 4 degrees cooler than the average body temperature.