Join fitness trainer Rachel McClusky for a 30-minute low-impact cardio circuit, alongside class members Mikayla Campbell and Nikita Chaudhry. In this routine, you'll start with McClusky's signature ...

Do you even know what HIIT stands for? We have the answer to that—and more.

Picture your coziest fall movie night: pumpkin-scented candles, a glass full of your favorite drink, a bowl of tasty snacks, and dim mood lighting. You're in your coziest pair of sweats and the mood ...

Cardio is a type of exercise that’s important to get your heart pumping and even get your energy levels up. Whether you’re chasing a weight-loss goal or looking to boost endurance, there’s a cardio ...

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. So where should you ...