High-intensity interval training, or HIIT, is a great way to torch calories, boost your metabolism and get a great workout in a shorter amount of time. And if you're a fan of hopping on the treadmill ...

Let’s be real—running indoors can sometimes feel repetitive, boring, and frankly, like the least appealing thing to do when at the gym. But as the temps continue to drop this season, the best thing ...

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! Kaley Cuoco knew her postpartum workout journey would begin ...

The 12-3-30 workout is simple: You walk on the treadmill at a 12 percent incline and 3 mph pace for a total of 30 minutes. Giraldo first shared the details about the workout in a video that’s now ...

A sports medicine physician shares potential benefits of viral 12-3-30 workout. When you walk into a gym in the new year and spot a person walking steadily on the treadmill at a very high incline, ...