A few months back, Michael Mosley's exposé on "The Truth About Exercise" became one of the most watched Horizon episodes ever. In this wonderful hour of television, Mosley uncovers the surprising new research which suggests many of us could benefit enormously from just three minutes of high intensity exercise a week. He also discovers the hidden power of simple activities like walking and fidgeting, and finds out why some of us don't respond to exercise at all. Typically, Mosley uses himself as a guinea pig and uncovers the surprising new research about exercise that has the power to make us all live longer and healthier lives. Captivating telly! Enjoy!