In this episode of the World Extreme Medicine Podcast, host Eoin Walker is joined by Hannah Lock, an emergency medicine doctor, expedition specialist, and seasoned mountaineer with experience across six continents. Together, they go beyond the basics of acute mountain sickness (AMS) to explore the lesser-known high-altitude illnesses and how they’re managed in the field.

From HAPE and HACE to retinal haemorrhages, chronic mountain sickness, high-altitude cough, frostbite, and the impact of altitude on muscle mass and sleep, this deep dive unpacks the realities clinicians and expedition leaders face at altitude.

Hannah also shares insights on managing risk in clients with comorbidities, new technologies shaping safety in the mountains, and practical strategies for hydration, acclimatisation, and performance at elevation.

Learn more about Hannah and her work here.