Go to https://ground.news/startalk to stay fully informed on the latest Space and Science news. Save 40% off through our link for unlimited access to the Vantage plan this month. Are we doing more harm than good in the pursuit of perfection? Neil deGrasse Tyson, comic co-hosts Chuck Nice and Gary O'Reilly explore looksmaxxing, peptides, body composition, and the scientization of health & beauty trends with pharmaceutical scientist & medfluencer Morgan McSweeney, aka Dr. Noc. Are we still searching for a fountain of youth? We discuss our timeless hunt for a quick fix, from Ponce de León's search for the fountain of youth to today. We explore GLP-1s and how they're shifting culture around thinness, injections, and body positivity. Is semaglutide made in the body? What are the downstream effects of GLP-1 use? What is a peptide? We take it back to biology class and talk about what peptides really are. Plus, learn why visceral fat and body composition matter for chronic disease and dementia. We discuss the effects of creatine and claims made about brain health? We also discuss the gap between mice and humans in drug testing, and the risks of injecting “grey market” peptides, from sterility to unintended health effects. We explore the anti-aging movement, VO2 max, predatory testosterone marketing aimed at young men, and the truth about "low T." How many men are really low in testosterone? Are peptides the future of medications? Finally, they tackle brain health, NAD+ hype, body dysmorphia in the age of Snapchat filters, and whether looking old can be beautiful. Thanks to our Patrons Techpack, Angela DavisGriffith, Renn, Joel Thompson, Steven Berry, Bonham Griggs, Konrad Talik, Dominik Franczyk, Jake Douglas, Ken Weiss, Gary Jordan, and CW Bushman for supporting us this week. Get the NEW StarTalk book, 'Lost in Space: 5,000 Facts for Navigating the Universe' on Amazon: https://amzn.to/4cCD19e Order Take Me to Your Leader here 👇 https://www.simonandschuster.com/books/Take-Me-to-Your-Leader/Neil-deGrasse-Tyson/9781668249970 Check out our second channel, @StarTalkPlus Support us on Patreon: https://www.patreon.com/startalkradio FOLLOW or SUBSCRIBE to StarTalk: Twitter: http://twitter.com/startalkradio Facebook: https://www.facebook.com/StarTalk Instagram: https://www.instagram.com/startalk About StarTalk: Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up! © 2026 Curved Light Productions. All rights reserved. STARTALK is a registered U.S. trademark of Curved Light Productions. Curved Light Productions also maintains rights in the A/legs design logo, STARTALK, STARTALK+, STARTALK PLUS in the U.S. and various countries throughout the world, and these and all other associated logos, marks, and trade dress are the property of Curved Light Productions. This video, including all audio, video, graphics, and accompanying materials, is the exclusive property of Curved Light Productions. No part of this video may be reproduced, distributed, publicly performed, transmitted, or used to create derivative works, in whole or in part, in any medium now known or hereafter devised, without the prior express written permission of Curved Light Productions. Unauthorized use, including reuploading, re-editing, or incorporation into third-party content, is a violation of United States and international copyright law and will be enforced. For licensing and permissions inquiries: licensing@startalkmedia.com #StarTalk #NeildeGrasseTyson