YOU KNOW YOU need muscle... and you need to burn calories. Everyone needs more strength, too—and we can all use a little more athleticism. But you don’t have hours upon hours upon hours to chase all ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Want an exercise program that helps you work out smarter, not harder? You've found it. The Women's ...

Sweat smarter to get stronger anytime, anywhere.

If you're short on time but still want a good burn from your exercise routine, high intensity interval training (HIIT) may be the best option for getting the most from your workouts. "As opposed to ...

Long before fitness influencers started selling HIIT programs, boxing had already perfected the format. Every boxing workout in history has been built around the same structure: rounds of intense work ...

Steady-state cardio focuses on keeping a consistent, moderate pace, while HIIT uses short bursts of hard work and short ...

HIIT once boosted your fitness, now it leaves you shattered. Learn how experts suggest balancing Zone 2 and intervals for women over 40.

Researchers from The University of Queensland examined 194 adults aged 65 - 85 with no signs of cognitive decline. Participants were assigned to a low-intensity, moderate-intensity, or HIIT workout ...