One of the most important things you can do to help prevent serious birth defects in your baby is to get enough folic acid every day - especially before conception and during early pregnancy. [Skip to Content]
Those who admitted to regularly smoking pot had a sperm count that was 29 percent lower than those who reported lighter use or didnât smoke at all. Meanwhile, men who used other recreational drugs alongside marijuana had sperm counts reduced by 55 percent and sperm concentrations reduced by 52 percent. Pot smokers were also found to have higher levels of testosterone within the same range as cigarette smokers.
Marijuana can also raise heart rate by 20 percent to 100 percent shortly after smoking and the effect can last up to three hours, according to NIDA. Marijuana also can reduce sperm production in men and disrupts a woman's menstrual cycle, according to NIDA.