This high-efficiency workout style boosts heart health, builds lean muscle, and transforms your fitness routine — all without a gym.

Quick 8-minute ab circuit workout at home with no equipment. One round of this routine is a good start; feel free to repeat it 2 more times for added challenge. You can incorporate this workout after ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? With countless ways to mix it up, this type of training is an efficient way to ...

Think you always need long, slow strength sessions to build strength and burn fat? Think again. New research suggests that high-intensity circuit training—workouts that pack multiple strength moves ...