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Dr. Shanna Swan: Dissecting the Fertility Crisis

If you're reading this... thank you for being part of our first podcast episode! Thank's for your support as we try to get this thing rolling. Hitting that like button lets us know we're doing something right and really helps spread this important message. My guest today is Dr. Shanna Swan, a distinguished PhD environmental and reproductive epidemiologist. Dr. Swan is a Professor of Environmental Medicine and Public Health at the Icahn School of Medicine at Mount Sinai in New York City, and adjunct faculty at UCSF. She is world renowned for her groundbreaking research on the impact of environmental exposures on human reproductive health, which is of great interest to me because hormones are richly involved in that process. Her work has focused on the effects of chemicals such as phthalates and Bisphenol A (BPA) on men's and women's reproductive health, as well as on the neurodevelopment of children. She is probably best known for a co-authored paper on the male infertility crisis, which became one of the most referenced scientific papers of 2017. She is also the author of the 2021 book Count Down, "How Our Modern World Is Threatening Sperm Counts, Altering Male and Female Reproductive Development, and Imperiling the Future of the Human Race." I've read this book twice. Not only is it my go-to book for it's data and studies and facts, it's a visionary treatise on the subject. It's not just a data dump of bad news. It will get you thinking about the serious implications of this data, yes, but also provides solutions you can implement right now, today. Honestly, I don't know of too many scientists with such pressing information for our day. In this podcast we look at genital/reproductive tract development and what occurs when that process is interrupted. We review the factors that contribute to semen quality and fertility in general. Dr Swan also talks about worldwide fertility rates dropping by 50% since 1960 and some factors that may be contributing. This is only a taste of topics discussed in this podcast episode. Let us know what stood out to you in the comment section. If you'd like to support our efforts: https://www.hormonespecialist.net/sup... Dr Swan's book Countdown https://www.hormonespecialist.net/lit... My Links Linktree - https://linktr.ee/hormonespecialistfb... Dr Shanna Swan's Links Linktree - https://linktr.ee/drshannaswanfbclid=... Timestamps: 00:00:00 Intro - Dr Swan's background 00:02:53 Layne's background 00:04:31 What is an environmental epidemiologist 00:05:06 Temporal trends and sperm count 00:06:17 Proper genital/reproductive tract in a fetus 00:09:50 Genital tract development interrupted 00:11:27 Maturation of sperm over about 60-75 days 00:12:17 Decline in number of sperm in semen 00:14:57 Interruption of testosterone in fetal development 00:19:10 Frequencies in deformities increasing 00:22:03 Sperm concentration and fertility 00:25:52 Factors that determine semen quality 00:28:20 Correlation between men's fertility and overall health 00:32:13 Link between testosterone levels and fertility 00:34:05 What to do for men with low testosterone 00:35:46 Some men's fertility issues can stem from mother's chemical exposure 00:36:17 Anogenital distance marker for androgen present during pregnancy 00:36:17 Anogenital linked to fertility 00:41:58 Check fertility 00:43:48 Worldwide fertility dropped by 50% between 1960 and 2015 00:47:13 Birthrate in US declining 00:50:56 Cause of birthrate decline 00:52:41 What can be done to improve fertility 00:55:14 Phthalates and other chemicals affecting fertility 00:58:35 Minimize hormone disruptor influence 01:02:39 Plastics and RICs 01:04:40 Water filters and hormone disruptors 01:05:39 Anti androgens can be intergenerational 01:09:23 Parents' health choices can impact their children's fertility 01:12:21 Testosterone's affects on the brain 01:16:34 Thank you Dr Swan DISCLAIMER: THIS SITE/CHANNEL/POSTING DOES NOT PROVIDE MEDICAL ADVICE The information, including but not limited to, text, graphics, images and other material contained here are for education and informational purposes only. No material on this site is intended to be a substitute for individual professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen. Never purchase and use prescription products on the internet without a prescription.