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The doctors are talking cancer, explaining what it is, why people get it, how it can be treated and how to help someone going through it.
3, 2, 1 blast off! Dr Chris and Dr Xand explore what happens to the human body in space, tackling the big body questions on everyone's lips - what happens to your snot when you sneeze, do you really get taller, and how do you poo and wee in zero gravity? Find out as Dr Chris boards an unusual flight to experience being weightless, and Dr Xand meets a real astronaut. Plus discover the amazing exercise machine that will change lives for astronauts and people on earth alike.
The hunt is on for grossest thing ever seen on Operation Ouch!
The doctors reveal how the human brain creates maps to prevent getting lost.
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 investigate how your lungs move, with the help of a huge water slide! And today's British Sign Language sign is 'dinosaur'.
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 reveal that your liver is an enormous energy storage system and join Lilia for an amazing operation on her brain.
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.
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.
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.
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, we see a camera go inside Dr Chris's lungs!
The doctors put the strength of human hair to the test and find out what makes different colours and types of hair.
Bafta-award winning medical show, Operation Ouch!, returns for a new ten-part series presented by identical twins Dr Chris and Dr Xand van Tulleken.
In this series they venture behind the scenes of one of the biggest children's hospitals in Europe, Alder Hey in Liverpool, which moved into a brand new state-of-the-art building last year.
With bigger experiments than ever before and incredible investigations, the doctors explore the fascinating world of medicine and biology and the amazing things that our bodies can do. This week, the doctors reveal what makes humans flexible as they test the incredible strength of a tendon to the max and Dr Xand sets out to discover if laughter really is the best medicine with a simple yet effective experiment.
In a new strand, Operation Takeover, they meet the heroes working behind the scenes of children's hospitals and try their hand at their amazing jobs in a head-to-head challenge that takes the twins well and truly out of their comfort zone.
The series also follows the journeys of four remarkable children as they undergo their treatment in hospital to find out what it's like to be a regular patient. Meanwhile in Accident & Emergency, one of the busiest in Europe, one patient has surgery to fix a leaking bone graft while another is treated for a dancing injury.