The doctors put the strength of human hair to the test and find out what makes different colours and types of hair.
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The doctors reveal the power of mighty mucus in keeping bacteria and air particles out of your airways. And in the emergency department, Maisie has a bead stuck up her nose!
How do you see in colour? And how can your eyes see in the dark? Time for Dr Xand to become Night Vision Man! Plus, in an Ouch! first, we see a camera go inside Dr Chris’ lungs! Show more
There’s flamenco dancing in the lab as the doctors take a look at fat pads in your feet. And find out what to do if someone falls from height.
The doctors investigate which part of the body heals the fastest, mouth or knee! Meanwhile, in the emergency department, Sophie has a screw in her foot!
George the tree frog joins the doctors to investigate how your Achilles tendon works using huge catapults! And there is a suspected spider bite in the emergency department.
Find out why the human body is mostly made of water as the doctors investigate the hypothalamus, the amazing part of your brain that keeps you hydrated.
The doctors reveal that your liver is an enormous energy storage system and join Lilia for an amazing operation on her brain.
The doctors supersize the alveoli, the tiny air sacs inside your lungs. And it's fingers on buzzers in Ouchology - who will get snotted?
The doctors investigate how your lungs move, with the help of a huge water slide! And today’s British Sign Language sign is ‘dinosaur’.
The doctors put the acoustic reflex to the test with an enormous balloon, and a serious case of snotting awaits the loser of today’s Ouchology.
The doctors reveal how the human brain creates maps to prevent getting lost.
The Operation Ouch! 3D cinema is open! The Doctors look at the incredible eye muscles that control focus on things close-up and far away. Show more
A world champion whistler pops in to help the doctors and Billy Bones whistle! And the doctors travel through time to an operating theatre where you wouldn't want to be a patient.
What have humans got in common with a mantis shrimp? Body crystals! Find out how the human body controls where they do and don’t grow in a toilet-tastic game. Show more
Things get explosive when Dr Chris and Dr Xand look at how spots are made, plus an incredible emergency service at work in Australia: the Flying Doctors.
Dr Xand’s in a spin to show why dizziness occurs, the Flying Doctors help a baby in Australia, and Dr Raph takes an icy dip as he meets a Brilliant Body who swims in the Arctic.
Find out how fast your nerves work in a snotty experiment that sees Dr Xand blow a fuse, and the Cupboard of Everything is time travelling to a very smelly Victorian street!