From The Age. One of those, may be there is some thing in it. The last bit:
"For many people, stair climbing will involve bouts of high-intensity activity lasting one or more minutes, and if this is repeated regularly enough in everyday life it could potentially improve fitness and other aspects of cardiovascular and metabolic health quite rapidly," Stamatakis says.
And of course, it will keep us young.
"There are substantial basic science data to support the idea that exercise is critically important to prevent or delay ageing," says Nair, who plans to look at the effect of exercise on other tissues in the body. "There's no substitute for that."