How is it possible a healthy diet doesn’t increase your lifespan? Is it all for nothing? Today we’re diving into longevity myths we’ve believed for too long. Peter Attia, co-founder and Chief Medical Officer of the popular fasting app, you probably have downloaded right now, Zero, and the bestselling author, podcast host, and longevity health expert, is breaking the mold and exposing why we’ve been thinking about lifespan and healthspan all wrong. His latest book, Outlive, debunks many of the ideas you may have sworn by around diet and what an optimized lifespan looks like.  In part 1 of this 2 part episode, Peter raises really interesting points on how the size of a person doesn’t accurately point toward metabolic health. One-third of the people that meet the criteria for obesity are actually metabolically healthy and have the same life expectancy of a person with a “healthier” BMI. We’re exposing common misbeliefs around longevity and Peter, being the longevity health expert he is, is highlighting the differences between lifespan and healthspan that is critical in how we achieve success for each of these outcomes. Stay tuned for part 2 of this episode where Peter starts breaking apart the calorie debate and why it doesn’t hold. Check out Peter Attia’s latest book, Outlive, The Science and Art of Longevity: https://www.amazon.com/Outlive-Longevity-Peter-Attia-MD/dp/0593236599 Follow Peter Attia:  Website: https://peterattiamd.com/  YouTube: https://www.youtube.com/c/PeterAttiaMD  Twitter: https://twitter.com/peterattiamd  Instagram: https://www.instagram.com/peterattiamd/  Facebook: https://www.facebook.com/peterattiamd/  Podcast: https://peterattiamd.com/podcast/ SPONSORS: This episode is sponsored by BetterHelp. Give online therapy a try at https://bit.ly/BetterhelpImpact and get on your way to being your best self. Head over to https://bit.ly/AnthrosImpact and get $200 off the office chair that promises to be the world's most comfortable sitting experience. Get 5 free AG1 Travel Packs and a FREE 1 year supply of Vitamin D with your first purchase at https://bit.ly/AG1Impact. No interest, no payments - take advantage of this special financing offer at https://bit.ly/NetsuiteImpact to get the visibility and control you need to weather any storm. Sign up today at https://bit.ly/ButcherBoxImpact and use code IMPACT to get a FREE TURKEY ​plus $20 off your first order.​ Are You Ready for EXTRA Impact? If you’re ready to find true fulfillment, strengthen your focus, and ignite your true potential, the Impact Theory subscription was created just for you. Want to transform your health, sharpen your mindset, improve your relationship, or conquer the business world? This is your epicenter of greatness.  This is not for the faint of heart. This is for those who dare to learn obsessively, every day, day after day. Subscription Benefits: Unlock the gates to a treasure trove of wisdom from inspiring guests like Andrew Huberman, Mel Robbins, Hal Elrod, Matthew McConaughey, and many, many, more New episodes delivered ad-free Exclusive access to Tom’s AMAs, keynote speeches, and suggestions from his personal reading list You’ll also get access to an 5 additional podcasts with hundreds of archived Impact Theory episodes, meticulously curated into themed playlists covering health, mindset, business, relationships, and more: Legendary Mindset: Mindset & Self-Improvement Money Mindset: Business & Finance Relationship Theory: Relationships Health Theory: Mental & Physical Health Power Ups: Weekly Doses of Short Motivational Quotes  Subscribe on Apple Podcasts: https://apple.co/3PCvJaz Subscribe on all other platforms (Google Podcasts, Spotify, Castro, Downcast, Overcast, Pocket Casts, Podcast Addict, Podcast Republic, Podkicker, and more) : https://impacttheorynetwork.supercast.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices