From better sleep to less stress, doctors share their thoughts on how different technology can help support our well-being.

High-intensity interval training is one of the best ways to pack a lot of exercise into a short period of time. HIIT workouts are so efficient because they alternate short bursts of very intense ...

Target your lower half with this balancing act. Unilateral (or single-side) exercises strengthen your core, glutes, thighs, calves, and quads.

Scientists say power—your ability to move quickly—is one of the first fitness skills to fade with age. And it’s not as hard ...