HIIT might be one of those exercise fads with staying power.
Healthy, portable and easy to throw together.
Strapped for time? Try these simple, effective treadmill workouts.
What’s magical about the number 700? If you can manage to burn 700 calories a day, you’ll be able to lose one pound of body weight over five days. However, a workout that burns that many calories is going to be intense, so you’ll want to check with your physician