The doctors reveal what makes you flexible as they test the incredible strength of a tendon to the max, and they find out what it's like to be an air ambulance pilot in Operation Takeover. Dr Xand ...

Dr Chris and Dr Xand show how incredible the human body is. The doctors crush a car to reveal the secret of the special fluid which enables your joints to withstand huge amounts of force, and they ...

Dr Chris and Dr Xand reveal the surprising secret behind the speed of your nerves, Dr Xand finds out what happens if you don't wash your hands, and the twins head out onto the street to test out a ...

In the penultimate episode of the medical series Operation Ouch, Dr Chris and Dr Xand van Tulleken continue their experiments explaining how and why we breathe. Dr Chris takes a close look at snot and ...