January 1, 1970
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 was...Read more
January 1, 1970
In this episode, the doctors reveal where your blood comes from, Dr Chris meets a patient undergoing life-changing brain surgery a...Read more
January 1, 1970
With the help of opera singer Lucy O'Byrne, the doctors reveal the hidden muscle that makes you breathe. Dr Xand heads to a DNA la...Read more
January 1, 1970
The doctors reveal what happens when you get diarrhoea, Dr Xand gets his skates on when he meets Alexia and Kloe from CBBC's Ice S...Read more
January 1, 1970
The Doctors test a new theory to see if they can find out why skin goes wrinkly in the bath, Dr Chris meets a patient taking part ...Read more
January 1, 1970
The doctors look at your kidneys and reveal how these amazing cleaning machines work. The ouch-mobile is open for more intriguing ...Read more
January 1, 1970
The doctors find out what happens when you eat with the help of a miniature Xand doll, test your ears and eyes in a baffling mind-...Read more
January 1, 1970
The doctors reveal the amazing organs that keep you alive before you're born. Dr Xand meets patients undergoing treatment at a bur...Read more
January 1, 1970
The doctors choose some of their favourite moments including an experiment to find out what happens when you cough and a life-chan...Read more
January 1, 1970
In this special episode, Dr Chris and Dr Xand take a look at what happens to your body, and why, when you reach puberty. Spots are...Read more