Did you know your body is full of crystals? Herman the mantis shrimp is in the lab to help the doctors explain how your incredible body not only makes crystals in your bones and teeth but also stops them from doing damage to your kidneys.

Say hello to new Oucher Anneeka, join Dr Dan as he goes on duty in a breathlessness clinic, and prepare for a huge medical discovery in Time Machine as the Cupboard of Everything heads into the past. Meanwhile, in the Emergency Department, Noha has arrived to find out why she keeps fainting, and has Jacob broken his toe? Show less