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Our doctors highlight how our body's movements are triggered, by messing with their own brains! Dr. Chris lets a leech suck blood from his arm and we learn about its healing benefits. Dr. Xand embarks on an emergency medical team to help a man who has fallen and hurt his arm. The episode also features an operation to remove two children's tonsils and discover their function. Meanwhile, in the hospital's emergency room, we find out how a patient jammed her jaw and how Dr. Shrouk will intervene to get it unstuck. Finally, Taig is also waiting in the ER to receive stitches after a nasty fall.