High intensity interval training (HIIT) may be the optimal exercise for reducing body fat while maintaining muscle mass in older adults, according to new research led by UniSC academics. "We found ...

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. Starting an exercise ...

A recent study from Australia suggests that high intensity interval training may be optimal for body composition in older ...

For your speed workout, try a fartlek run/walk: After a walking or easy running warmup, run hard for 30 seconds or as long as ...

Exercise is known to benefit heart health. High-intensity interval training (HIIT) that combines aerobic exercise with ...

Walking burns calories, gets your heart rate up, and counts toward your exercise minutes for the week. But it's not always ...