Step aerobics is a classic cardio workout. It has lasted for decades for a simple reason: it delivers results. The "step" is a 4-inch to 12-inch raised platform. You step up, around, and down from the ...

So I’ve been testing three of the most popular 7,000-step walking workouts on YouTube. Spoiler alert: I have a clear ...

Although many people aspire to exercise more in the new year, nearly 80 percent of adults fail to meet the recommendation for aerobic and muscle-strengthening activity. To achieve any fitness goal, it ...

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. While plenty of ...