What does real longevity look like when you’ve lived at the sharp end of performance? In this episode of Performance People, Georgie is joined by Dr Tamsin Lewis, longevity physician, psychiatrist, former GB triathlete and founder of Wellgevity, for a wide-ranging conversation about health, performance and what it really takes to sustain both over time. Tamsin reflects on her journey from elite sport into medicine, and how triathlon became both a focus and a turning point during a period of stress, overwork and unhealthy coping mechanisms. She speaks candidly about anxiety, eating disorders, perfectionism, validation, and the darker side of high achievement, as well as the role competition, challenge and community can play in transforming behaviour. The conversation also explores the bigger picture of modern wellbeing: burnout, relationships, diet, environment, nervous system regulation and the daily habits that can either protect or deplete us. This is an episode about much more than living longer, it is about living better, with greater awareness, resilience and intention. In this episode: * Dr Tamsin Lewis’s journey from elite triathlon to longevity medicine * The relationship between high performance, stress and self-sabotage * How exercise can become a healthier outlet for pressure and anxiety * Why burnout protection goes beyond sleep and nutrition * The role of relationships, environment and nervous system health * Perfectionism, validation and the psychology of achievement * What sustainable health actually looks like in real life 00:00 Introduction 00:23 Meet Dr Tamsin Lewis 01:18 How triathlon changed everything 04:12 Competition, stress and overtraining 07:11 What good coaching really does 08:57 Female performance, fuelling and training differences 13:06 Burnout, elite sport and building a business 17:00 The hidden cost of pushing too hard 20:02 Mold, Covid and immune system overload 23:45 Burnout, cortisol and recovery 25:00 What longevity should actually mean 32:16 How to future-proof your health ________________________________ The Performance People podcast, in partnership with J.P. Morgan Private Bank, talks to high-performers in the world of sport and beyond, to bring defining moments, hard-earned insights and expert advice to everyday performance. New episodes every Tuesday. ________________________________ ainslie + ainslie NIGHT POWDER, winner of Best Sleep Supplement in the GQ Sleep Awards 2025. We love performance, which is why we’ve launched ainslie + ainslie – the first supplement brand to be developed inside elite sport. Now available for everyone. Find out more at www.ainslieainslie.com ________________________________ Connect with Performance People Hit subscribe today for the latest. 🎧 Spotify/Apple Music http://www.performancepeoplepodcast.com/ https://www.instagram.com/performance.people/ ________________________________ The views and opinions expressed on Performance People are those of the guests and hosts, and do not necessarily represent the views of ainslie + ainslie, J.P. Morgan Private Bank, or any affiliated organisations. This podcast is produced by Gameface Limited and is intended for general information and entertainment purposes only. © Gameface Limited 2026. All rights reserved. Hosted on Acast. See acast.com/privacy for more information.
