Smoking and sperm count
Tobacco smoking and semen quality in infertile males: a systematic review and meta-analysis
How does smoking marijuana affect sperm?
There is no safe limit for smoking, the only way to protect yourself and your unborn baby from harm is to quit. Men and women who smoke take longer to get pregnant than non-smokers. Second-hand smoke is almost as damaging as smoking and women who are exposed to second-hand smoke take longer to conceive than women who are not. The chemicals in cigarettes can cause damage to eggs and sperm which affects a future child's health.
The Effects of Cigarette Smoking on Male Fertility
November 26, Studies have repeatedly linked maternal smoking during pregnancy with reduced sperm counts in male offspring. Now a research team at Lund University in Sweden has discovered that, independently of nicotine exposure from the mother, men whose fathers smoked at the time of pregnancy had half as many sperm as those with non-smoking fathers. The study was conducted on Swedish men aged between 17 and Once the researchers had adjusted for the mother's own exposure to nicotine, socioeconomic factors, and the sons' own smoking, men with fathers who smoked had a 41 per cent lower sperm concentration and 51 per cent fewer sperm than men with non-smoking fathers.
Yes, and no. Lifestyle factors like smoking, may or may not cause fertility problems for an individual couple. A recent literature review by Harlev et al , analyzed scientific publications on cigarette smoking and male infertility. The authors compared 33 relevant studies of infertile smokers and found that:.