A single session of high-intensity exercise can disturb the body's main stress hormone, leading to less activity after the workout, a lower body temperature, and weight gain, a new study of mice finds ...

High-intensity interval training involves performing an all-out, exhaustive physical effort for a short time followed by a short (sometimes active) recovery. Its benefits are clear: Effective HIIT ...

Every so often, a new type of workout seemingly takes the fitness world by storm. The latest in this long line of buzzy fitness fads: the Norwegian 4x4 workout, a high-intensity interval training ...

A HIIT workout can be tricky to define because, at its core, it just means a string of exercises that gets your heart racing, providing a cardio boost to what would otherwise be a serviceable, but ...

Get ready for a super sweaty 20-minute HIIT workout—all standing, no jumping, and no equipment required! This high-intensity cardio routine is designed to burn calories, boost endurance, and challenge ...

With work, family, and life piling up, hitting the gym often feels impossible. Enter the 7-minute workout, a high-intensity exercise routine that promises results in no time. The viral regimen ...

We're definitely fans of exercise snacking, but sometimes nothing but a long, sweaty workout will do — and if that's what you're craving, this 45-minute high-intensity interval training workout with ...

Low-intensity exercise is thought to be better for keeping this “stress hormone” in check. But scientists say cortisol plays a crucial role in fueling your workout. Often called the “stress hormone,” ...

What's your workout persona? For me, it's the Energizer Bunny. I've been told by a trainer I'm like a Ferrari – always running. No, not literally. I'm more of a boxer/lifter type (if you are too, ...

When it comes to cardio workouts, the debate between High-Intensity Interval Training (HIIT) and Steady-State Cardio (SSC) ...

Figuring out how to start working out can feel overwhelming—especially when the internet is saturated with conflicting advice, complicated exercise programs, and unrealistic expectations. As a ...

Bored with traditional cardio like running on a track or using the elliptical? The moves combined in this six-move sequence make for an incredible calorie-burning alternative. Bonus: They’ll also ...