Do fast workouts (only 10 minutes, 3 days a week!) really help you lose weight?

High-intensity interval training workouts that are just a few minutes long are all the rage as a quick way to lose weight. But do they really work? In the second installment of our “Cutting the Fat TODAY” series, Sheinelle Jones reports on how three weeks of fast workouts worked for her, and Dr. Jordan Metzl says that these workouts can be effective as part of an overall fitness regime.