There are other vices, as well, that can affect sperm count, besides
alcohol. Smoking tobacco is thought not only to
decrease the quality of a woman’s eggs, but it is thought to reduce a man’s sperm count. Illicit drugs like cocaine, as well, have been demonstrated to affect sperm count. Marijuana tends to have a similar affect on sperm count, and is also likely to cause a man to have more abnormal sperm.