High-intensity interval training, or HIIT, is a great way to get in a fast, effective workout. This quick routine is helpful ...

Our reporters have teamed up with fitness experts to design dozens of routines. Try something new — and build an exercise ...

Should you do cardio or strength training first in your workout? It depends on your goals. Find out when to do each and when ...

Add this to your workout routine one to two times a week and watch your conditioning improve fast.

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 ...

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 ...

Simple, equipment-free routines for beginners to build strength, flexibility and heart health at home, with safety tips and ...

All of these movements reduce sedentary time, are gentle on joints, have a low barrier to entry, are sustainable for many people, and would probably improve your mood. Soft cardio has it's place, but ...

Few would disagree that cardio, also called aerobic exercise, is good for your health. Of the 10 most common chronic diseases, seven are "favorably influenced by regular physical activity," according ...