SARATOGA SPRINGS, N.Y. ” America might not need yet another exercise machine. Treadmills, weights and resistance equipment already jam the health clubs. Yet Gravity machines have found a niche at the ...

Exercise is one of the lowest-tech activities around. You build up a sweat, make your body move, maybe build some muscles or drop some pounds — and technology has, at best, a role on the outside, in ...

Being in space for extended lengths of time can place a great deal of physical stress on an astronaut’s body. The weightlessness associated with lack of gravity can cause health issues such as ...