Gabriel Weston uncovers extraordinary cases that are revealing new discoveries about the human body, including a girl with two hearts and a man who can sing two notes at once. Show more

Liz Bonnin travels to a sanctuary in Sierra Leone to witness a lifesaving operation on a chimpanzee. A vet uses techniques from human medicine to diagnose and remove a lump. Show more

Michael Mosley teams up with scientists whose latest research is turning common knowledge about fitness on its head to separate fact from fiction. Show more

Michael Mosley investigates the dramatic rise in e-cigarettes and what 'vaping' really does to your health. Show more

Gabriel Weston uncovers extraordinary cases that are bringing new discoveries about the human body. In this episode, we meet a man who injects himself with deadly snake venom. Show more

Angela Rippon and Dr Chris van Tulleken team up with scientists to turn back the clock on a group of volunteers, showing how to reverse the ageing process. Show more

Angela Rippon and Dr Chris van Tulleken investigate the ageing process. An unfit 57-year-old discovers how building muscle could protect her against illness. Show more

Angela Rippon and Dr Chris van Tulleken investigate the ageing process. A woman sees what her diet is doing to her skin, and an ex-policeman scores the worst body age seen so far. Show more