Dr. Ross Hemingway, a Sports & Exercise Medicine Doctor at the UK's Commando Training Centre for Royal Marines, shares gripping insights into extreme military training. He discusses the fine line between physical limits and survival, emphasizing the critical role of medical professionals. Topics include managing exertional heat illness and the importance of resilience among recruits. With thrilling anecdotes about overcoming extreme conditions and the mental toughness required for elite training, Hemingway highlights lessons applicable to both military and sports endurance.