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

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

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

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

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

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

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

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

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

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

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

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

The doctors reveal what lurks inside the plaque bacteria on your teeth; Dr. Chris uses a remote cont...

The doctors meet Larry the vomiting robot to show the power of puke, and Dr Xand goes on an urgent m...

The doctors take a close-up look at how the eye works, and Dr Chris finds out what body fat does by...

Dr Chris uses a tiny camera to reveal what happens in his throat when he swallows food, and Dr Xand...

The doctors take a closer look inside their ears to prove how earwax has a really important job to d...

The doctors look at the awesome work that goes on inside the liver, and Dr Chris extracts snot from...

The doctors prove that we all have invisible ink inside our bodies, and Dr Xand sees head lice remov...

The doctors use real stomach acid to do an experiment to reveal how the digestion process starts. Al...

The doctors show that your breath is just as unique as your fingerprints, and Dr Chris goes behind t...

Dr Chris and Dr Xand show you an awesome body trick to amaze your friends with, and reveal another w...

Dr Chris and Dr Xand turn back the clock and look at what medicine was like in the First World War....

The doctors reveal how much power there is in your farts. Also, Dr Chris trains as a nurse on a ward...

The doctors reveal how far your heart can pump blood, Dr Xand meets a life-saving dog, and in Ouch &...

The doctors reveal what comes out of your mouth when you cough, Dr Xand gets a front-row seat at a l...

The doctors reveal how you taste with your nose as well as your tongue. Dr Xand is on call with the...

The doctors fill their bladders, quite literally, to show what happens when you go for a wee. Dr Chr...

The doctors try to trick their body temperatures, the ouch-mobile is open for more intriguing medica...

The doctors make an unusual type of cheese with Xand's body bacteria, find out what to do if someone...

The doctors set fire to food, all in the name of science! Dr Xand goes to an asthma clinic, and in O...

The doctors get competitive in a race to reveal what happens when blood vessels get blocked, Dr Xand...

Dr Chris and Dr Xand have more first-aid tips as they show you what to do if someone chokes. The ouc...

Dr Chris and Dr Xand reveal the surprising secret behind the speed of your nerves, Dr Xand finds out...

In this episode, the doctors reveal where your blood comes from, Dr Chris meets a patient undergoing...

With the help of opera singer Lucy O'Byrne, the doctors reveal the hidden muscle that makes you brea...

The doctors reveal what happens when you get diarrhoea, Dr Xand gets his skates on when he meets Ale...

The Doctors test a new theory to see if they can find out why skin goes wrinkly in the bath, Dr Chri...

The doctors look at your kidneys and reveal how these amazing cleaning machines work. The ouch-mobil...

The doctors find out what happens when you eat with the help of a miniature Xand doll, test your ear...

The doctors reveal the amazing organs that keep you alive before you're born. Dr Xand meets patients...

The doctors choose some of their favourite moments including an experiment to find out what happens...

In this special episode, Dr Chris and Dr Xand take a look at what happens to your body, and why, whe...

The doctors reveal what makes you flexible as they test the incredible strength of a tendon to the m...

The doctors reveal how your eardrum works to enable you to hear, and they find out how tough it is t...

The doctors reveal how important cartilage is to your body with the help of a suit of armour, and th...

The doctors reveal why your body can't survive without oxygen for more than three minutes, and they...

The doctors reveal how amazing your saliva is, and they find out why the hospital's maintenance team...

The doctors reveal the special cells in your eyes which help you to see out of the corner of your ey...

The doctors reveal the amazing army of germ-fighters that make up your immune system, and they find...

The doctors find out why we burp and even manage a world-first when they film Dr Xand burping from t...

The doctors reveal the amazing job your pancreas does to keep your blood sugar levels in check, and...

In the last episode of the series, the doctors reveal the amazing strength of your jaw, and they see...

Dr Chris and Dr Xand show how incredible the human body is. The doctors crush a car to reveal the se...

There's a big bang in this episode as the doctors reveal the amazing piece of body kit that helps yo...

The doctors take a dip in the sea to reveal how your sensory neurons detect when something is hot or...

The doctors reveal how big your lungs would be if they were laid out flat and why you need to cough,...

The doctors reveal why you need differently shaped teeth to eat your food safely - by wearing some v...

The doctors investigate why we need eyebrows, and in Operation Takeover they find out just how tough...

Dr Chris and Dr Xand reveal how your brain enables you to learn new things with the help of three hu...

Dr Chris and Dr Xand find out why blood rushes to your head when you are upside down but does not ru...

Dr Chris and Dr Xand reveal how your bones grow to make you taller, while in Operation Takeover they...

Dr Chris and Dr Xand reveal the amazing type of muscles that help you see... and go for a poo! And t...

Dr Chris and Dr Xand reveal how your skull protects your brain, and they are thrown in at the deep e...

Dr Chris makes Dr Xand cry to demonstrate how your amazing body makes different types of tears to pr...

In the last episode of the series, the doctors have picked out some of their favourite moments - get...

Dr Chris and Dr Xand Van Tulleken investigate what mental health is and why things can sometimes go...

There’s a big bang in the lab as the doctors show how genes make you who you are, and a new doctor j...

The doctors balance a whole room’s worth of furniture on four leg bones to show you how super strong...

Are you squeamish? Find out why in today’s lab experiment, and get ready to get moving in Investigat...

Dr Xand goes underwater to show how your blood clots, and Dr Ronx finds out how echolocation – an am...

What makes your poo brown? Find out in a new lab experiment, and meet another brilliant body when Dr...

The doctors reveal the turbinates – three incredible bones in your nose that warm up your snot so yo...

Find out how amazing your hands are in today’s lab when the doctors go head to head in a thumb chall...

Dr Xand invents a crazy game show to put Dr Chris’s reactions and reflexes to the test in the lab, a...

Dr Chris and Dr Xand reveal how salt is the magic ingredient that enables you to sweat in a lab expe...

Dr Chris and Dr Xand are in the lab to show the incredible barrier that keeps your brain safe, and t...

The doctors reveal the incredible bit of body kit that keeps you balanced – your vestibular system,...

Dr Chris and Dr Xand reveal how your brain controls your body in a lab experiment, and Dr Ronx finds...

Join the doctors for a journey around the human body as they look at their favourite bits from your...

In this special episode, Dr Chris and Dr Xand reveal the winners of the first ever Ouch Awards. Cele...

Want to know how to sort your life out? Packed with loads of life fixing know-how, this show cracks...

The doctors find themselves in a crazy race as they explore the special bones in your feet, followed...

Dr Xand invents a facial-recognition system to keep his twin out of the lab, there is a brand new qu...

There's a lizard in the lab sharing an amazing piece of body kit with you. Catch up with our Ouch Ba...

Dr Xand has created a thunder tube to show you how your vocal tract makes your voice loud, meet Bril...

Find out why Dr Chris is giving Dr Xand a vaccination in the lab, and why getting vaccinated yoursel...

For today’s lab, Dr Chris challenges Dr Xand to beat Dougie the dog in a race, showing you how your...

Dr Chris challenges Dr Xand to beat Dougie the dog in a race for today's lab, showing how your shoul...

Can you wobble your kneecaps?! Find out why and what you need them for in today’s lab. Plus, meet th...

Dr Xand gets stuck to a wall in an experiment showing how your brain tells your muscles to move! Dr...

Dr Xand takes to the throne when Dr Chris sets him the impossible task of being Mini-Xand’s pituitar...

There’s a tug of war in today’s lab as the doctors show the incredible strength of your ligaments. D...

Dr Chris puts Dr Xand inside a giant water balloon to show how viruses attack our bodies, there’s a...

Join the doctors for a special episode as they revisit with Ouchers from across the last seven serie...

The Ouch Awards returns, celebrating children across the UK who have shown incredible courage and br...

The doctors investigate food and poo to show you why it is important to know what you are eating and...

Dr Chris and Dr Xand have brought their lab into Xand’s kitchen! In today’s episode, the doctors loo...

Dr Chris and Dr Xand measure lung capacity.

Dr Chris and Dr Xand show how to put your taste buds to the test.

Dr Chris and Dr Xand show how to test the power of snot in today’s experiment.

Dr Chris and Dr Xand show you the importance of a good healthy poo in today’s experiment.

Dr Chris and Dr Xand show you how bacteria makes you break wind in today’s experiment.

Dr Chris and Dr Xand show the power of membranes in today’s bouncy egg experiment.

Dr Chris and Dr Xand show you how to find fingerprints at home in today’s experiment.

Dr Chris and Dr Xand show you how to find your blind spot in today’s eye experiment.

Dr Chris and Dr Xand show how to make rice dance with a soundwave in today’s experiment.

The Operation Ouch doctors bone up on everything about your amazing skeleton.

In this special themed episode, the Operation Ouch! doctors explore the incredible human digestive s...

In this special themed episode, the Operation Ouch! doctors explore the incredible human ears, showi...

In this special themed episode, the Operation Ouch! doctors explore the incredible human eye, showin...

In this special themed episode, the Operation Ouch! doctors explore your incredible teeth, showing e...

Dr Chris, Dr Xand and Dr Ronx explore the science behind the current Coronavirus pandemic, answering...

A giant crane experiment, a brilliant body and some massive snotting in this episode! The doctors re...

Dr Chris dresses up as a giant tongue in the lab and our Ouch Babies celebrate their first birthdays...

The doctors go head to head in a baking competition to show why your neck needs to twist! There are...

The Doctors find out what fear does to your body with a supersized balloon pop. And find out what ma...

The doctors attempt an experiment of superhero proportions to show why your ribcage is the perfect d...

The Doctors take a dip in a jelly pool to show how the cells in your body work! We find out how to d...

There’s a gooey green mess in the lab as the Doctors explain how bile digests fat, and there’s a ser...

The Doctors reveal how to train your brain as two families compete in a memory challenge. Dr Xand in...

There's a pong in the lab as the Doctors reveal the special part of your brain that helps you smell....

Why is Dr Xand dressed as a bird in the lab? Find out why you blink in today’s experiment, and disco...

The Doctors hit the road in the Ouch Taxi to surprise the winners of the third Ouch! Awards. Find ou...

In this episode, the doctors look at vomit and show you how to make a sick vomit factory!

In this episode, the doctors examine reactions and show how you can use your senses to test your rea...

In this episode, the doctors examine the heart and show you how to make your own pumping heart model...

In this episode, the doctors look at what causes spots and show you how to make gunky edible spot ca...

In this episode, the doctors break down blood and demonstrate how to make an amazing blood lava lamp...

In this episode, the doctors unravel DNA and show you how to extract it from your saliva!

In this episode, they check out why we need iron and show you how to search for it in your cereal!

In this episode, the doctors look at body fat and show how it can keep you warm.

In this episode, the doctors look at the bladder and show you an experiment to make your own wee mac...

In this episode, the doctors follow the movement of water in your cells and show you an experiment t...

The Doctors have a giant nail in the lab to show how your nails are made. But what happens if you st...

The doctors put the strength of human hair to the test and find out what makes different colours and...

How do you see in colour? And how can your eyes see in the dark? Time for Dr Xand to become Night Vi...

The doctors reveal the power of mighty mucus in keeping bacteria and air particles out of your airwa...

There’s flamenco dancing in the lab as the doctors take a look at fat pads in your feet. And find ou...

George the tree frog joins the doctors to investigate how your Achilles tendon works using huge cata...

The doctors investigate which part of the body heals the fastest, mouth or knee! Meanwhile, in the e...

Find out why the human body is mostly made of water as the doctors investigate the hypothalamus, the...

The doctors reveal that your liver is an enormous energy storage system and join Lilia for an amazin...

The doctors supersize the alveoli, the tiny air sacs inside your lungs. And it's fingers on buzzers...

The doctors investigate how your lungs move, with the help of a huge water slide! And today’s Britis...

The doctors put the acoustic reflex to the test with an enormous balloon, and a serious case of snot...

The doctors reveal how the human brain creates maps to prevent getting lost.

The hunt is on for grossest thing ever seen on Operation Ouch!

Three, two, one, blast off! Dr Chris and Dr Xand explore what happens to the human body in space, ta...

The doctors are talking cancer and answering all the big questions: What is it? Why do people get it...

Things get explosive when Dr Chris and Dr Xand look at how spots are made, plus an incredible emerge...

Find out how fast your nerves work in a snotty experiment that sees Dr Xand blow a fuse, and the Cup...

Dr Xand gets in a spin to show you why you get dizzy, the Flying Doctors help a new baby in Australi...

A world champion whistler pops in to help the doctors whistle - and even Billy Bones joins in!

The Operation Ouch! 3D cinema is open! But how do you see the world in three dimensions? Find out as...

Herman the mantis shrimp is in the lab to help the doctors explain how your incredible body not only...

Dr Chris and Dr Xand look at the cool bit of body kit that sucks your tears away when you cry! The O...

There's a snot-tastic dose of Ouchology when the doctors face tough medical questions, and a VIP gue...

Dr Chris finds himself in an uncomfortable spot as he goes head-to-head with Dr Xand in a man v monk...

The Doctors are Ouch & About ready for your medical questions, and Dr Xand turns fire juggler to rev...

There's a pong or two in the lab as the Doctors discover how your sense of smell can bring back happ...

Dr Xand has broken the rules and snuck a marble run into the lab but will Dr Chris notice in today's...

Dr Xand is shocked when Dr Chris suggests making pizza in the lab! But little does he know, he's abo...

It's superhero time as the Doctors' alter-egos go into battle to show the secret powers of your skin...

The doctors celebrate as the NHS turns 75. They award Ouch Hero medals in the hospital, hear Ouchers...

Dr Chris and Dr Xand investigate whether farts could power a rocket, and Gladiator Dynamite tests Dr...

The doctors investigate noisy tummy rumbles and share the Top 5 Bizzare-est Body Parts You Never Kne...

What would it look like if a lifetime’s worth of tears fell in one massive drop? Dr Xand does a poo...

Dr Xand has been recording his farts - why do they sound so different? And it's time to meet two bri...

How are bogies made? With the help of a supersized nose, the doctors make their own! Dr Ronx is on a...

The doctors test how strong stomach acid really is, and will it be Dr Chris, Dr Xand or Dr Ronx who...

The smell of Dr Xand’s pongy feet takes over the lab, so the doctors investigate. Dr Dan and Dr Raph...

There’s a mega-snotting in Ouchology, and the doctors are in the lab testing how strong teeth are.

Gladiator Dynamite puts Dr Dan and Dr Raph’s core muscles to the test, Dr Chris shoots hoops with a...

The doctors become pesky viruses, but can they beat the body defenders? And we’re off to Australia t...

How do you know when you need a wee? The doctors find out in the lab! An optical illusion turns Dr X...

Dr Xand arm wrestles the world’s strongest woman to help find out how muscles grow. And the doctors...

Gladiator Dynamite keeps the peace as doctors Dan and Raph work their chests. Meanwhile, Dr Chris an...

Dr Xand tries to sleep standing up, then finds out how virtual reality can help in surgery. Doctors...

Dr Chris gets a soaking in the lab, and picking a shade of purple leaves people gobsmacked in Mindbe...