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 ...

You don't have to strain your knees by running miles to get your cardio in. In fact, if you're looking to ease into fitness in a way that puts less pressure on your joints, then low-impact cardio ...

Every step you take during traditional cardio exercises could be slowly destroying your knees, hips, and ankles. The repetitive forward motion that defines most cardiovascular workouts creates a ...

Walking, swimming and HIIT can all improve cardiovascular fitness, but which one is best for you? A cardiologist explains the ...

You don’t have to strain your knees by running miles to get your cardio in. In fact, if you’re looking to ease into fitness in a way that puts less pressure on your joints, then low-impact cardio ...

Cardio is good for us. We need both cardio and strength training for basic health, as well as our athletic goals. But what actually counts as cardio? Can you count walking? Lifting weights? Anything ...

Calisthenics and cardio exercises can be arranged in several ways to improve running times and overall fitness test scores. Few, though, push you as hard as this one in a progressive manner -- until ...

A U.S. Army soldier from the 25th Infantry Division performs a deadlift during the annual Tropic Lightning Week weightlifting competition on Schofield Barracks, Hawaii, Dec. 7, 2022. (Pfc. Mariah ...

When it comes to fitness, cardio often gets the most attention. Running, cycling, brisk walking or spending time on the treadmill can help burn calories and improve heart health. But what if you ...