The Federal Aviation Administration will require a minimum of 10 hours of rest between shifts, up from nine hours. The changes come amid concerns about air traffic controller fatigue and air travel ...

A typical strength- or muscle-building workout happens in sets. You lift the weight a certain number of times (“reps”), then you put it down for a quick rest before going again. But how long should ...

When we think about growing muscles and strength through working out, we often picture someone sweating it out at the gym — relentlessly. In fact, many gym-goers think along the same line that hard ...