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Biology · Ch 2 — Reproduction in Lower and Higher Animals

Causes and Prevention of Infertility

Causes and Prevention of Infertility

Remember

Always Remember

Tobacco, marijuana and other drug smoking may cause infertility in both men and women. Nicotine blocks the production of sperm and decreases the size of the testicles. Alcoholism in men interferes with the synthesis of testosterone and has an impact on sperm count. Use of cocaine or marijuana may temporarily reduce the number and quality of sperm. …