Dr. Greg Spooner sits down for an impromptu interview with his long time friend and one of the most experienced, accomplished climbers and guides in mountaineering history, Garrett Madison to chat about injuries, expectations and physical fitness that is required to climb the tallest peaks. Garrett does so many expeditions per year that his workout and fitness regimen is his climbs but what does an average hopeful who wants to climb Mt. Everest or other do to prepare. Let's find out.

Garrett holds multiple high-altitude mountaineering world records, such as being the only person to climb Mount Everest (numeround times guiding over 70 climbers on his expeditions) and nearby Mount Lhotse in a day, four times. He is the only American to climb K2 three times and has personally led more climbers (clients) to the summits of Mount Everest and K2 than anyone. Read more here