Why do ears have earwax, and how much do they make? Dr Dan and Dr Raph investigate what happens when a person burps! And will Dr Chris or Dr Xand get snotted in quiz show Ouchology?
The doctors investigate how fast farts travel with their Fart-O-Matic contraption. And Gladiator Dynamite tests Dr Dan and Dr Raph's bulging biceps in an epic Body Battle!
Dr Chris and Dr Xand explore what happens when you vomit. Dr Raph disappears into Dr Dan's body to see what his heart does in Just One Second, and we meet a brand new Oucher.
How does blood carry oxygen? Dr Tosin sends Dr Xand and Dr Chris through blood vessel tunnels to find out. And Dr Raph meets robots being trialled for magnetic vine surgery.
There's heart-pumping action in Ouchology, and Dr Xand enters a giant blister to help explain why we get them! And in Bodytricks, we learn a cool trick that will amaze your friends.
Gladiator Dynamite sets Dr Dan and Dr Raph a skipping task in Body Battles - who will end up in the ice bath? And in the lab, we find out if we really lose most heat through our heads.
Dr Leanne is in the Ouch and About pod, and can Dr Xand use his voice to break glass? Dr Dan and Dr Raph work their abs with Gladiator Dynamite.
Can Dr Chris and Dr Xand build a human in the lab just from whizz-bang experiments? Mr Grumbles becomes a mind-bending sculpture, and who will be getting a snotting in Ouchology?
Dr Tosin whizzes round and round to help explain why tummies flip on a rollercoaster. Gladiator Dynamite sets another Body Battle, and find out how triage works in hospital.
Find out what causes pins and needles, Dr Dan disappears into the lungs of saxophone-playing Dr Raph in Just One Second, and follow Oucher Kirsty's chemo session.
Find out what causes chapped lips with the help of some giant ones! In Just One Second, Dr Raph gets on Dr Dan's nerves, and Dynamite sets up another Body Battle.
The doctors explore their way through the world of medicine and biology.
