Smoke, Alcohol and Drug Addiction and Male Fertility
Read the sections "Background" and "Conclusions." Also, have a look at Figure 1, "Effects of smoking, alcohol and drug abuse on spermatogenesis (left) and hormonal parameters (right) in males." (5 minutes)
Reproductive Biology and Endocrinology - 2018
Click https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5769315/ link to open resource.