29min - Twins doctors Chris and Xand van Tulleken explore their way through medicine and biology.
29min - Meet two new Ouchers, and find out how eye muscles work with an unusual fairground game.
29min - The doctors make Billy Bones his very own bum and reveal the power of your gluteus maximus muscle!
29min - The doctors super-size the heart to investigate the piece of body kit that makes it beat.
29min - The doctors reveal the incredible energy stores that make your body work around the clock!
29min - The doctors try to find out how enzymes speed up chemical reactions inside the human body.
29min - The doctors explore blood types and reveal how your blood fights off unwanted invaders.
30min - The doctors hit the road in the Ouch Taxi to surprise the winners of this year's Ouch! Awards.
The twin doctors strike a great balance of silliness and education, and showcase just how cool our bodies a... Mehr erfahren
Wissen macht Ah!
Jonathan Bird's Blue World
7.8
7.8
