Lack of time is often the main reason people don't exercise regularly. But a type of interval workout recently popularized by ...

In a small study, sprint interval exercise helped to “clean-up and rebuild” cells better than steady-state moderate-intensity cardio. Sprinting (in this case, on a bike) helped get rid of damaged ...

If you are looking for running workouts, you can take them to a local track. Look no further than this mix of intervals, sprints, resistance running and goal-mile pace workouts. Choose from the ...