A recent study from Australia suggests that high intensity interval training may be optimal for body composition in older adults, by helping to lose fat while preserving muscle.

Add Yahoo as a preferred source to see more of our stories on Google. Couple power walking outside in the park on a cold day. (Getty Images) This month we will be alternating between HIIT walks and a ...

Plus, exactly how to get results from whatever activity you love to do.

High intensity interval training could be the secret to staying young. — -- Exercising by doing interval training, not weight lifting, could be the secret to staying young, according to a new ...

If you’ve noticed stubborn belly fat, lower energy, and workouts that suddenly feel harder during menopause, you’re not ...

Here’s your excuse not to work out today. A single session of high-intensity exercise can disturb the body’s main stress hormone, leading to less activity after the workout, a lower body temperature, ...

When you drink a protein shakes doesn't matter as much as how much protein you consume. Here's the latest research and expert ...

Sure, running is just as easy as putting on the right shoes and heading outside, but once you get into it, you start to see information in the form of acronyms, such as DNF (did not finish), FKT ...

A single session of high-intensity exercise can disturb the body's main stress hormone, leading to less activity after the workout, a lower body temperature, and weight gain, a new study of mice finds ...