This recommendation is to stay away from nicotine in all forms, especially smoked or vaped products such as cigarettes, cigars, pouches, and e-cigarettes. The core protocol is complete avoidance rather than moderation, with extra emphasis on adolescents and people trying to conceive or reduce cardiovascular risk. The rationale is that nicotine is highly addictive and habit-forming, while inhaled tobacco and vaping exposures can damage blood vessels and lungs, raise clot and cancer risk, and impair fertility and overall health.
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“Smoking directly, if we want to look at that, you know, I would say it's one of the few things that gets into the vault and decreases our egg count. You go into menopause early, you'll get fewer eggs. The egg quality is detrimental.”
huberman · How Women Can Improve Their Fertility & Hormone Health | Dr. Natalie Crawford · Apr 13, 2026 · 2:00:01 · open ↗