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Dr. Shanna Swan

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โ€œWe are living in a chemical soup, and if we don't change how these substances are regulated and used, we are looking at a species-level threat.โ€

โ€” Shanna Swan
MAR 31, 2026Joe Rogan

#2476 - Shanna H. Swan

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    Global sperm counts are declining by 1% annually - this trend, driven by endocrine disruptors, suggests a potential fertility crisis where the majority of the population may require assisted reproduction by 2045.

    โ€œSince 1973, sperm counts have dropped by 50% to 60%, and the rate of decline is actually increasing.โ€

    โ€” Shanna Swan
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    Phthalates and PFAS are feminizing males in utero - exposure to these 'everywhere chemicals' during the critical first trimester window disrupts testosterone production, leading to permanent reproductive health changes.

    โ€œPhthalates are particularly concerning because they lower testosterone, which is essential for proper male development in the womb.โ€

    โ€” Shanna Swan
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    Personal detoxification requires systemic lifestyle changes - reducing plastic use, switching to glass containers, and eating organic are necessary steps to lower the body's chemical burden and protect reproductive health.

    โ€œWe are living in a chemical soup, and if we don't change how these substances are regulated and used, we are looking at a species-level threat.โ€

    โ€” Shanna Swan