Get ready to sweat with this 15-minute full body HIIT cardio workout! No equipment needed — just your body, your energy, and 15 minutes to torch calories and boost endurance. Join Fit_byMary for a ...

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 ...

You've likely heard all about the benefits of exercise for your heart, lungs and blood sugar. Basically, it does the whole body—and mind (thanks, endorphins!) good. However, you may have stopped using ...

Intense four-second bursts of exercise performed three times a week for less than 15 minutes can boost cardio and muscle power, a study suggests.

For some people trying to lose weight, they might find that they've plateaued and wonder if there is anything they can add to their workout routine to jumpstart their metabolism. Enjoying a ...

Every so often, a new type of workout seemingly takes the fitness world by storm. The latest in this long line of buzzy fitness fads: the Norwegian 4x4 workout, a high-intensity interval training ...