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 ...

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

Cardio exercises have major benefits for your heart, as you probably know. What's more, aerobic exercise can boost your brain health and can even reduce the risk of death. Running is the workout most ...

From machines to at-home HIIT, these workouts maximize calorie burn to help you lose weight and keep it off. Efficient, high-intensity, varied cardio burns more fat than steady-state, low-intensity ...

It can be a challenge to figure out where to start when you want to lose weight. But if you’ve recently started on a path to lose weight safely yet efficiently, doing cardio for weight loss is key.

When you enter the gym, which way should you head first? Toward the treadmills and spin studio to get your sweat on with a cardio session? Or toward the free weights and strength-training machines to ...

Jenessa Connor is a writer with experience writing health, fitness, and nutrition topics for publications, websites, companies, and experts in wellness spaces. For older adults, certain forms of ...

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 ...

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 ...