Dr Xand goes underwater to show how your blood clots, and Dr Ronx finds out how echolocation - an amazing navigation technique used by bats to fly in the dark - is helping visually impaired patients.
Dr Chris and Dr Xand Van Tulleken investigate what mental health is and why things can sometimes go wrong.
Are you squeamish? Find out why in this lab experiment, and get moving in Investigation Ouch. The doctors tackle medical mysteries on the wards in Ouch and About, and we meet two more Ouch Patients.
The doctors balance a van on four leg bones to show you how super strong your skeleton is, and find out how to turn your fingers into a sausage in a body trick.
Dr Chris and Dr Xand are whipping up blood smoothies in the lab to show the incredible barrier that keeps your brain safe, and they've made a music video to get you moving.
Dr Chris and Dr Xand reveal how salt is the magic ingredient that enables you to sweat in this lab experiment, and Dr Ronx finds out how gene therapy is helping treat patients with immune disorders.
Dr Chris and Dr Xand take a look at what happens to your body and why, when you reach puberty. Dr Xand finds out why you sweat more, and Dr Chris discovers the real reason teens don't want to get up in the morning.
Dr Xand invents a crazy game show to put Dr Chris' reactions and reflexes to the test in the lab; Dr Ronx heads out on call with the emergency services.
Find out how amazing your hands are in the lab when the doctors go head-to-head in a thumb challenge, and discover how drones are helping emergency rescue crews reach patients fast in Investigation Ouch.
The doctors reveal the turbinates: three incredible bones in your nose that warm up your snot so you can breathe clearly, and find out how scientists are growing a brain in Investigation Ouch.
There's a big bang in the lab as the doctors show how genes make you who you are, and a new doctor joins the team. Meet two patients, and find out how to make a hole in your hand with a body trick to try at home.
What makes your poo brown? Find out in this lab experiment, and meet another brilliant body when Dr Xand discovers the incredible breathing skills needed to free dive.
The doctors find themselves in a race as they explore the special bones in your feet. Meet the families awaiting the arrival of the first-ever Ouch babies, and you won't believe your eyes in this episode's mind-bending trick.
In this special episode, the doctors investigate food and poo to show you why it's important to know what you're eating and look after your body!
The Ouch Awards are back! We reveal the four winners as the doctors surprise them at home.
Join the doctors as they revisit Ouchers from across the last seven seasons, including Matthew who had a cochlear implant enabling him to hear, and Ouch Patient Ruby who's recovered from leukaemia.
Dr Chris puts Dr Xand inside a giant water balloon to show how viruses attack our bodies, there's a final instalment of Ouchology, and Dr Chris discovers how the shape of your ears enables you to hear.
There's a tug of war in the lab as the doctors show the incredible strength of your ligaments. Spot the disappearing head in Mindbenders, and Dr Xand meets a dad and his son making bionic hands in their living room.
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