Plot Summary:Dr. Saleyha Ahsan examines how we can burn excess fat without any extra effort. Dr. Chris van Tulleken puts protein shakes to the test, while Michael Mosley reveals how to get the benefits from resistance exercise without going down the gym. Surgeon Gabriel Weston questions whether smoothies and juices with antioxidants live up to the hype and she follows the story of a woman who gets her vision back thanks to a bionic eye.