Dr Chris and Dr Xand celebrate children across the UK who have shown incredible courage and bravery as they’ve dealt with illness, cared for others and saved lives. Show more

Dr Xand goes underwater to show how your blood clots, and Dr Ronx finds out how echolocation – a navigation technique used by bats – is helping visually impaired patients. Show more

The doctors reveal the turbinates - three incredible bones in your nose that warm up your snot so you can breathe clearly. Also, find out how scientists are growing a brain. Show more

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! Show more

The doctors balance a van on four leg bones to show you how strong your skeleton is, and find out how to turn your fingers into a sausage in today’s body trick! Show more

Are you squeamish? Find out why in today’s lab experiment, and get ready to get moving in Investigation Ouch! Show more

Dr Chris and Dr Xand explore the what makes your poo brown. Plus Dr Xand meets another brilliant body when he discovers the incredible breathing skills needed to free dive. Show more

Find out how amazing your hands are when the doctors go head to head in a thumb challenge, and discover how drones are helping emergency rescue crews reach patients. Show more

Dr Xand invents a crazy game show to put Dr Chris’s reactions and reflexes to the test in the lab, and Dr Ronx heads out on call with the emergency services. Show more

Dr Chris and Dr Xand are in the lab to show the incredible barrier that keeps your brain safe, and they’ve made a music video to get you moving! Show more

The doctors reveal the incredible bit of body kit that keeps you balanced – your vestibular system, and find out what makes Team GB hockey star Shona McCallin so fast Show more

Dr Chris and Dr Xand reveal how salt is the magic ingredient that enables you to sweat in a lab experiment, and Dr Ronx finds out how gene therapy is helping treat patients. Show more

Dr Chris and Dr Xand reveal how your brain controls your body in a lab experiment, and Dr Ronx finds out how learning pet first aid can help save your furry friends. Show more