
Smoking, Sperm, and the Great DNA Break-Up
Smoking damages sperm by causing DNA fragmentation, which means the genetic material inside the sperm becomes broken and incomplete. This can lead to issues with fertility.
Fertility Friday Tip 7: Heavy smokers produce up to 20% fewer sperm than non-smokers. The genetic material in the sperm (DNA) can also be damaged by the chemicals in cigarette smoke. So protect your fertility, and don’t smoke.