Clips from Operation Ouch! Dr Xand explains the importance of using soap when you wash your hands.
Clips from Operation Ouch! Dr Chris and Dr Xand explain how wee is made and where it comes from.
Clips from Operation Ouch! Dr Xand gives blood and follows it through the factory and out to a patient in need.
Clips from Operation Ouch! Dr Chris and Dr Xand investigate the body's mucus, snot and spit, and the important roles they play.
Clips from Operation Ouch! Coughing and sneezing are the body's ways of getting rid of unwanted stuff, but they can spread germs really far too!
Dr Chris and Dr Xand demonstrate an awesome body trick and reveal another way the human body heals itself after an injury.
The doctors show that your breath is just as unique as your fingerprints and Dr Chris goes behind the scenes of medical drama Casualty.
In the last episode of the series, the doctors have picked out some of their favourite moments - get ready to see just how strong your tendons really are and discover who the be ...
Dr Chris makes Dr Xand cry to demonstrate how your amazing body makes different types of tears to protect your eyes in different ways, and in Operation Takeover they discover ju ...
Dr Chris and Dr Xand reveal how your skull protects your brain, and they're thrown in at the deep end when they find themselves running the reception desk of a busy GP surg ...
The doctors use real stomach acid to do a gross experiment to reveal how the digestion process starts.
The doctors prove that we all have invisible ink inside our bodies and Dr Xand sees head lice removed from someone's hair with a vacuum cleaner.
Dr Chris and Dr Xand reveal the amazing type of muscles that help you see... and go for a poo! And they find out what it's like to be the hospital hairdresser when they ...
Dr Chris and Dr Xand reveal how your bones grow to make you taller, while in Operation Takeover they take on the role of midwives for the day. Plus Dr Chris investigates how sci ...
Dr Chris and Dr Xand reveal how your brain enables you to learn new things with the help of three human 'samples' from the Cupboard-of-Everything, a giant pile of sand ...
The doctors look at the awesome work that goes on inside the liver, and Dr Chris extracts snot from members of the public for a very useful experiment.
Clips from Operation Ouch! We put our bodies to the test to find out how they react in extreme temperatures. It's hot v cold!
Clips from Operation Ouch! We find out what a real human brain looks like and how it controls every action within your body.
Clips from Operation Ouch! We take a closer look at your tongue and how your taste buds work.
Clips from Operation Ouch! Muscle and tendons work together to make our bodies move - we show you how.
Clips from Operation Ouch! Investigating how leeches and maggots are used as a medical treatment.
Clips from Operation Ouch! Three dogs show us how they can help in medical situations, from diabetes to diagnosing serious illness and during pet therapy.
Clips from Operation Ouch! Discovering how your nerves work.
Clips from Operation Ouch! Discovering why we have microbes and parasites all over our bodies and how they help us.
Clips from Operation Ouch! Discovering how vocal chords, diaphragm and lungs work to allow you to sing.
Clips from Operation Ouch! All about bellybuttons, from how the umbilical cord works when you're a baby, to why some people have outy belly buttons.
Dr Chris and Dr Xand experiment and explore their way through the fascinating world of medicine and biology. The doctors experiment on their muscles to show how they work.
Dr Chris and Dr Xand look at what medicine was like in the First World War and meet a paralympian runner who swaps her awesome blade for a WW1 leather leg.
Dr Chris and Dr Xand find out why blood rushes to your head when you are upside down, but does not rush to your feet when you are standing up! Plus they head to the hospital lau ...
Series about the world of medicine and biology. Dr Chris inserts a tiny medical camera up his nose and down his throat to look at how our vocal cords work.
Series about the world of medicine and biology. Dr Chris explains what happens to your body when you feel travel sick, and Xand finally finds out if he really does snore.
Series about the world of medicine and biology. Dr Chris inserts a tube into Dr Xand's nose and down to his belly to prove that the nose, mouth and stomach are all connected.
Dr Chris and Dr Xand experiment and explore their way through the fascinating world of medicine and biology. The doctors see how much pain they can take in their laboratory.
Dr Chris and Dr Xand experiment and explore their way through the fascinating world of medicine and biology. The doctors demonstrate how our body movements are controlled.
Dr Chris and Dr Xand experiment and explore their way through the fascinating world of medicine and biology. The doctors show what really happens when you sneeze.