Not only are you burning more calories than a steady state of 45 minutes of cardio, but the intensity of the HIIT workout kicks your body’s repair cycle into overdrive, making you burn more fat ...

Finish the Women's Health+ Ultimate HIIT Challenge strong with this 20-minute upper body bodyweight workout. Today's program ... Then, perform the second exercise for 45 seconds.

To get the most out of a HIIT workout you need to go hard during the movement intervals and recover during the rest periods.

If any area of fitness has seen a rise in popularity in recent memory, it's HIIT (high intensity interval training). Global lockdowns and gym closures over the last year have forced people to turn ...