Get ready for 15 minutes of intensive Abs & Cardio that target your abs while maximizing fat-burning. Warming up before ...

Join fitness trainer Katie Austin for a 15-minute no-equipment cardio and core workout, alongside class members Nikita Chaudhry and Paulyn Baens. In this routine, you'll power through creative, ...

Join fitness trainer Katie Austin for a 15-minute low-impact cardio workout with class members Nikita Chaudhry and Paulyn Baens. In this routine, you'll feel strong and sweaty without jumping. This ...

You don't have to devote yourself to long workouts to see a difference. Just 15 minutes is a lot more powerful than it seems. Hedy Phillips is a freelance lifestyle writer based in New York. While she ...

If you’re looking for an extra-sweaty exercise routine that you can do at home, I highly recommend pulling up a cardio boxing workout on YouTube and having at it. The fast-paced, punching-based ...

Editor’s note: Before beginning any new exercise program, consult your doctor. Stop immediately if you experience pain. For many people, the thought of sweating in a noisy gym full of strangers or out ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. January 12, 2026 Add ...

The cardio craze has ebbed and flowed for decades. At various points in time, it’s felt like everyone is obsessed with cardio-based workouts—and doing a lot of them—from step aerobics in the ’80s to ...