A team of Mayo Clinic researchers is back from a month long trip to Mount Everest. They studied the various effects altitude can have on your heart, lungs and sleeping patterns. It doesn't matter, where you go, how you get there, or how fancy your living arrangements may be. "It's about a 50 mile trek to base camp. You're camped on a moving ice formation you can hear the ice cracking at night," says Mayo Clinic Professor Bruce Johnson. It's always a tough adjustment, anytime you're so far from home. "Throughout the night there are avalanches you know, around you," Johnson explains.
KAAL by Gordon Severson