Go cold turkey on recreational drugs, such as marijuana and cocaine, which can affect the brain chemistry responsible for releasing reproductive hormones. A father's drug use can also cause birth defects. A host of lifestyle factors can be perilous to your potency. The good news is, once you become aware of these often hidden fertility drainers, they are fairly easy to avoid. Hot tubs, saunas and tight-fitting clothes.
Testicles function best when they keep their cool.
Steamy spa equipment, snug jeans, synthetic shorts and bikini underwear can all overheat your testicles and inhibit sperm production. Impotence can be an unexpected and frightening side effect of avid cycling. A study from the University of Southern California School of Medicine found that a bicycle seat's steady pressure on the groin area can damage arteries and nerves. To avoid this problem, periodically lift yourself off the seat when riding long distances. See a doctor if you feel any numbness or pain, or have erection problems after biking.