A sharp side stitch, aching muscles or a sudden cramp can derail even the most dedicated workout — but most of these annoyances are harmless and easy to manage.

Psst: it's not another plank.

Exercise is known to benefit heart health. High-intensity interval training (HIIT) that combines aerobic exercise with ...

Certain times—and workouts—are better than others.

For your speed workout, try a fartlek run/walk: After a walking or easy running warmup, run hard for 30 seconds or as long as ...

Plus, the surprising benefits of turning the intensity down a notch.

Whether climbing a PT pyramid, swimming, powering through a 5x5 or unwinding with mobility work, these workouts are favorites among military members for their effectiveness, adaptability and ability ...

Run faster and more efficiently with these moves.

If you're curious about starting a resistance training routine and not sure where to begin, start with these ...