Operation Ouch!

Marvellous Muscles

Identical twins Dr Chris and Dr Xand van Tulleken experiment and explore their way through the fasc...

Your Brilliant Brain

Identical twins Dr Chris and Dr Xand van Tulleken experiment and explore their way through the fasc...

Secret Lifesavers

The doctors demonstrate how our body movements are controlled by confusing their own brains. Dr Chr...

The Coolest Feet in Town

The doctors see how much pain they can take in their laboratory, Dr Xand investigates how our shoes...

Your Connected Body

Dr Chris inserts a special medical tube into Dr Xand's nose and down to his belly to prove that the...

Don't Be Sick in the Sky!

Dr Chris takes a terrifying, stomach-turning ride in an aerobatic display plane to explain what hap...

Vibrating Vocal Chords

Dr Chris demonstrates how vocal chords work and explores how the human body deals with fear. Dr Xan...

Snakes and Venom

The Doctors experiment with urine. Dr Chris explores the damage snake venom can do to the human bod...

Bruised or Broken?

he doctors investigate what happens when blood is full of oxygen by whisking up a blood smoothie! D...

Your Bones Are Alive

Dr Chris swallows a supercool camera pill to follow the journey that food makes through his body. D...

What a Stink?!

Doctors take on their smelliest investigation yet when they find out how the shape, size and pong o...

The World’s Stretchiest Skin

What is an Allergy?

The doctors investigate how skin protects the body from extreme temperatures by dipping their hands...