You've found it. The Women's Health+ Ultimate HIIT Challenge is a week-long program that combines high intensity interval training workouts, steady-state cardio sessions, and active recovery ...

Part of the Women's Health+ Ultimate HIIT Challenge, this fast-paced program uses a dynamic warmup, weighted exercises, and active recovery to strengthen your shoulders, chest, back, and abdominal ...

In a five-year Norwegian study looking at 1500 adults, participants were placed into three groups: HIIT, moderate exercise and following the government’s activity guidelines. Those in the HIIT ...