Nick Sterling, M.D., Ph.D.

How do drugs like Ozempic (semaglutide) cause weight loss? What happens when someone comes off of these drugs? In this episode, we discuss how these drugs (GLP-1 receptor agonists) target specific areas in the brain to suppress appetite and facilitate weight loss. We also discuss clinical trials data suggesting that these drugs and/or the weight loss that they facilitate may have cardioprotective effects. Lastly, we will also examine evidence regarding weight regain when coming off of these drugs and common side effects. Link to episode on neuroscience of appetite regulation: https://www.youtube.com/watch?v=i3RzV9vS_FA #healthspan, #semaglutide, #ozempic, #wegovy, #science, #weightloss Chapters: 00:00 - Intro 01:31 - What Does GLP-1 Do? 02:08 - GLP-1 Receptors in the Brain 02:52 - Activating the GLP-1 "Switch" (Receptors) 04:13 - Clinical Trials - Semaglutide for Weight Loss 05:29 - Semaglutide and Heart & Metabolic Health 05:54 - For How Long Does Semaglutide Work? 06:35 - Weight Regain After Stopping Semaglutide 08:24 - Side Effects of GLP-1 Receptor Agonists 09:37 - Take-Home Points 10:20 - Outro Social & Website: Instagram - https://www.instagram.com/sterlingmdphd Twitter - https://twitter.com/sterlingmdphd Facebook - https://www.facebook.com/sterlingmdphd TikTok - https://www.tiktok.com/@sterlingmdphd Newsletter - http://eepurl.com/hQpdqT Subscribe to the Podcast: Apple Podcasts: https://apple.co/3y438C9 Spotify: https://open.spotify.com/show/5TDUK3F2sJXfnG63hSxJhT?si=40bb52e5b53f404c Google Podcasts: https://bit.ly/3Olanei References & Show Notes: http://www.nicksterling.com/ The content of this video is for general information purposes only and does not constitute the practice of medicine or any other healthcare professional services. The content of this video is not medical advice. No doctor-patient relationship is formed. The content of this podcast should not take precedence over information provided to you by your healthcare provider or official public health sources. Please visit nicksterling.com/terms for full Terms of Use.

In this episode, we discuss fat through the lens of performance and survival, and what happens when we push our energy systems to their limits. We also talk about how our bodies make adaptations via exercise to improve our ability to "burn" fat for fuel, and how our bodies conserve fuel during times of negative energy balance. Lastly, we preview the role of fat as an endocrine organ and the importance of its communication with the brain, as well as the critical role of exercise capacity for our future health. Chapters: 00:00 - Introduction 01:49 - Extreme Endurance 02:54 - Fuel Source & Effort 03:12 - Glycogen 05:16 - Using Fat for Fuel 08:48 - Known Limits of Prolonged Energy Expenditure 10:21 - Metabolic Rate & Endurance Duration 14:00 - Physiology of Fat 16:18 - Insulin & Catecholamines in Fat Metabolism 19:10 - Fat as an Endocrine Organ 21:05 - Exercise & Maximal Fat Oxidation 22:02 - Exercise & Future Health 22:55 - Summary Social & Website: Instagram - https://www.instagram.com/sterlingmdphd Twitter - https://twitter.com/sterlingmdphd Facebook - https://www.facebook.com/sterlingmdphd TikTok - https://www.tiktok.com/@sterlingmdphd Newsletter - http://eepurl.com/hQpdqT Subscribe to the Podcast: Apple Podcasts: https://apple.co/3y438C9 Spotify: https://spoti.fi/3mZDvMv Google Podcasts: https://bit.ly/3Olanei References & Show Notes: http://www.nicksterling.com/

This is our first episode on weight gain and weight loss. In this episode, we describe how, as an industrialized nation, our food supply and environment have changed in a way that, in many cases, is mismatched with our biology as humans. We explore how these changes can lead to disease and metabolic dysfunction. We discuss how the replacement of whole foods with processed foods, as well as the addition of caloric sweeteners to most of the food items within grocery stores across the nation has preceded a rapid rise in obesity and metabolic dysfunction. In this episode, we begin to discuss some of the pathophysiology related to the consumption of ultra-processed and hyper-palatable foods as well as concerns surrounding the consumption of fructose- and glucose- containing sugary drinks. We also discussed the timelines of weight gain and loss as they typically occur over the lifespan and vary according to season. This episode sets the stage for the next episodes, which will focus on the normal fat metabolism and how it may become dysregulated in metabolic dysfunction. Chapters 00:00 - Introduction 01:21 - Metabolic health as a continuum 03:57 - Obesity as an epidemic 05:12 - Heritability and genetics of obesity 06:45 - Where obesity starts in the body 07:26 - History of weight gain in the U.S. 11:32 - High fructose corn syrup vs. table sugar 13:40 - Glycemic index and load 14:45 - What happens to your liver with sugary drinks 16:24 - Sugary drinks may be associated with cancerous changes 17:35 - The calories from sugary drinks are not automatically offset 20:24 - Obesity as a disease 23:10 - Obesity and kids 24:24 - How obesity develops across the lifespan 26:55 - The impacts of weight loss attempts 30:12 - Summary and upcoming content Social & Website Instagram - https://www.instagram.com/sterlingmdphd Twitter - https://twitter.com/sterlingmdphd Facebook - https://www.facebook.com/sterlingmdphd TikTok - https://www.tiktok.com/@sterlingmdphd Website - https://nicksterling.com Newsletter - http://eepurl.com/hQpdqT