Estrogen— which is cardioprotective —declines post-menopause, but HIIT, a type of workout that alternates between short ...

In one of Grossman’s studies, older women who used a 10-minute HIIT workout three to five times a week for 16 weeks increased muscle about 2.23 times faster than women doing long aerobic workouts.

Home HIIT workouts are great if you can't get to the gym. Explore the benefits of these HIIT workouts for all levels, with weight and time variations.

Some people are wary of high-intensity workouts since they often involve forms of jumping. But you can do a wide variety of HIIT workouts without a single jump.

While I usually lean towards thick-soled trainers, HIIT workouts require a flatter base for better control during strength moves like ball slams, plus extra grip for power-based exercises such as ...