Perhaps: Opioid drugs lower testosterone in men and interfere with the menstrual cycle in females; both can contribute to infertility. Thc also reduces testosterone and sperm counts but I am unaware if it will lead to menstrual problems without other co-occurring medical diseases. Use of stimulant drugs and/or alcohol may lead to malnutrition which may reduce fertility as well.
Answered 5/12/2016
6.1k views
Yes: Abuse of steroids, cocaine, alcohol, methamphetamines, opioids, and cigarette smoking (see elshal; clin biochem:2009) have been reported to negatively impact male fertility.
Answered 10/4/2016
5.6k views
7 doctors weighed in across 2 answers
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