Mountain climbing might seem like a sure shot at a slim waistline.
Not so, says a French study. In fact, you'll probably stay slimmer walking the same distance at sea level.
The Laboratoire des Adaptations de l'Organisme a l'Exercice Musculaire in Toulouse, France, somehow convinced eight men to spend a month on a simulated climb up Mount Everest. They never left the laboratory, but for 31 days they stayed in an enclosed chamber where they were subjected to reduced oxygen levels, just as they would be at high altitudes.
Researchers reported in the European Journal of Physiology, that under low oxygen conditions, the body conserves fat, and doesn't use stored fat as a source of energy. So climbing Everest wound up being a bad way to lose weight.