IFMGA certified mountain guide and high-altitude physiologist dedicated to safe alpinism and endurance training. She has summited four 8,000-meter peaks and specializes in preventing altitude sickness and managing physical performance in low-oxygen environments.
Astrid Jensen combines elite mountaineering experience with a deep academic background in sports physiology, making her a leading voice in high-altitude safety. Having guided teams across the Himalayas and the Andes for over 15 years, she understands the biological toll of extreme elevation and the specific training required to mitigate it. Her articles bridge the gap between medical theory and practical trail application, focusing on acclimatization protocols, nutritional strategies for thru-hiking, and technical climbing mechanics. She advocates for a disciplined, science-based approach to mountain sports, debunking fitness myths that endanger novice climbers. Astrid is currently developing training programs specifically for transitioning from gym climbing to outdoor alpine environments.