Dr Michael Eisenberg is a professor of Urology at Stanford, a urologic surgeon, and a leading expert in male fertility and reproductive medicine. It's no secret that global population decline is accelerating, but what's driving it? Male fertility might be a major piece of the puzzle. So why are so many men struggling with infertility and low testosterone, and what can be done to reverse it? Expect to learn why global sperm counts have declined by over 50% in the last 40 years, what the biggest determining factors that influence a man’s sperm quality is, what men should do if they want to improve their sperm quality, what the relationship between age and fertility is for men and when fertility starts to drop off, if there is a relationship between sperm quality and there a relationship between alcohol, marijuana, smoking & vaping, what men can do to improve their testosterone, and much more… Sponsors: See me on tour in America: ⁠https://chriswilliamson.live⁠ See discounts for all the products I use and recommend: https://chriswillx.com/deals Get the brand new Whoop 5.0 at https://join.whoop.com/modernwisdom Sign up for a one-dollar-per-month trial period from Shopify at https://shopify.com/modernwisdom Get a Free Sample Pack of LMNT’s most popular Flavours with your first purchase at https://drinklmnt.com/modernwisdom Timestamps: (0:00) Why The Global Sperm Count Is Declining (7:11) How Is Sperm Count Measured? (18:24) The Impact Of Varicoceles On Fertility (27:01) How Can Men Optimise The Quality Of Their Sperm? (33:47) New Technology Changing Fertility Rates (38:26) Is Testosterone Lowering Sperm Counts? (41:52) Is Porn Affecting Erections? (55:30) The Peak Fertility Checklist (01:01:16) Find Out More About Michael Extra Stuff: Get my free reading list of 100 books to read before you die: https://chriswillx.com/books Try my productivity energy drink Neutonic: https://neutonic.com/modernwisdom Episodes You Might Enjoy: #577 - David Goggins - This Is How To Master Your Life: https://tinyurl.com/43hv6y59 #712 - Dr Jordan Peterson - How To Destroy Your Negative Beliefs: https://tinyurl.com/2rtz7avf #700 - Dr Andrew Huberman - The Secret Tools To Hack Your Brain: https://tinyurl.com/3ccn5vkp - Get In Touch: Instagram: https://www.instagram.com/chriswillx Twitter: https://www.twitter.com/chriswillx YouTube: https://www.youtube.com/modernwisdompodcast Email: https://chriswillx.com/contact - Learn more about your ad choices. Visit megaphone.fm/adchoices