Dr. Peter Attia (peterattiamd.com, TW: @PeterAttiaMD, IG: @peterattiamd, FB: @peterattiamd) is a former ultra-endurance athlete (e.g., swimming races of 25 miles), a compulsive self-experimenter, and one of the most fascinating human beings I know. He is one of my go-to doctors for anything performance or longevity-related. He is also easily the best quarterback and sherpa for the US medical system I've ever met. But here is his official bio to do him justice: Peter is the founder of Attia Medical, PC, a medical practice with offices in San Diego and New York City, focusing on the applied science of longevity. The practice applies nutritional biochemistry, exercise physiology, sleep physiology, techniques to increase distress tolerance, lipidology, pharmacology, and four-system endocrinology to increase lifespan (delaying the onset of chronic disease), while simultaneously improving healthspan (quality of life). Peter trained for five years at the Johns Hopkins Hospital in general surgery, where he was the recipient of several prestigious awards, including resident of the year, and the author of a comprehensive review of general surgery. He also spent two years at NIH as a surgical oncology fellow at the National Cancer Institute where his research focused on immune-based therapies for melanoma. He has since been mentored by some of the most experienced and innovative lipidologists, endocrinologists, gynecologists, sleep physiologists, and longevity scientists in the United States and Canada. Peter earned his M.D. from Stanford University and holds a B.Sc. in mechanical engineering and applied mathematics. Peter also hosts The Drive, a weekly, ultra-deep-dive podcast focusing on maximizing health, longevity, critical thinking and a few other things. Topics include fasting, ketosis, Alzheimer's disease, cancer, mental health, and much more. Subscribe on Apple Podcasts, Spotify, Overcast, or wherever you listen to podcasts.  Please enjoy! This podcast is brought to you by HumanN's BeetElite, the endurance superfood and nitric oxide activator. HumanN's BeetElite can help extend endurance, improve energy and stamina, and increase oxygen delivery throughout the body. It provides the nitric oxide equivalent of six whole beets, and BeetElite is trusted by hundreds of elite teams, athletes, and organizations all over the world, so you know you're getting a top-notch performance product. BeetElite is Informed-Sport Certified, and the team at HumanN is making an offer exclusive to my listeners: Take your performance to the next level with BeetElite by going to LiveHuman.com/Tim to get 20% off your first purchase! This podcast is also brought to you by Peloton, which has become a staple of my daily routine. I picked up this bike after seeing the success of my friend Kevin Rose, and I’ve been enjoying it more than I ever imagined. Peloton is an indoor cycling bike that brings live studio classes right to your home. No worrying about fitting classes into your busy schedule or making it to a studio with a crazy commute. New classes are added every day, and this includes options led by elite NYC instructors in your own living room. You can even live stream studio classes taught by the world’s best instructors, or find your favorite class on demand. Peloton is offering listeners to this show a special offer: Enter the code you heard during the Peloton ad of this episode at checkout to receive $100 off accessories with your Peloton bike purchase. This is a great way to get in your workouts, or an incredible gift. That’s onepeloton.com and enter the code you heard during the Peloton ad of this episode to receive $100 off accessories with your Peloton bike purchase. *** If you enjoy the podcast, would you please consider leaving a short review on Apple Podcasts/iTunes? It takes less than 60 seconds, and it reall