Aerobic exercise, also known as cardio, "involves activities that use large muscle groups rhythmically and continuously, raising the heart and breathing rates," explains Gontang. He says that the word ...

Cardio exercises build endurance, strengthen the heart, and boost your aerobic capacity. Strength training helps build muscle, maintains bone health, and supports metabolism. Many workouts incorporate ...

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 ...

Named the top fitness trend for 2018, HIIT involves going hard for, say, 30 seconds, then easy, hard, then easy, and so on—as ...

Japanese walking this. Hot Pilates that. Trendy workouts may be top of mind, but one question always remains: How much exercise per week do you actually need to be healthy? While you might think it’s ...

America has an obesity problem. The National Institutes of Health estimates that two in five adults are overweight and one out of every three adults are obese. Though a healthy diet has the biggest ...