Expert profile
Dr. Shana Swan
Epidemiologist / Researcher
Reproductive epidemiology and environmental health
1Discussion
70 minAnalysed
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About the expert
Focus: Endocrine-disrupting chemicals and human reproductive health
Reproductive epidemiologist with decades of research on phthalates, bisphenols, and other endocrine-disrupting chemicals. Author of Count Down. Best known for documenting trends in sperm counts and the role of common-exposure chemicals in fertility, urogenital development, and hormonal health.
Expert discussions with Dr. Shana Swan
Hyman with Swan: Phthalates, bisphenols, and what microplastic exposure may be doing to fertility and hormones
Phthalates, bisphenols, and other plastic-related chemicals are now widely measurable in human bodies, including reproductive tissues. Population studies link higher exposure to falling sperm counts, hormonal disruption, and fertility problems. A few practical changes, such as filtering water, avoiding plastic food storage, and choosing fragrance-free personal care products, may meaningfully lower personal exposure.