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The official channel of the France 3 show. It's not rocket science, the magazine of discovery and science. Anesthesia is not just about putting people to sleep. It must of course ensure the loss of consciousness, but also prevent pain from being triggered, while ensuring perfect immobility of the body. Fred, Jamy and Sabine opened the doors of an operating room to follow the delicate work of anesthesiologists. How does our nervous system work? What paths does pain take? How do analgesics block this pain? How do curares ensure muscle relaxation? How do we put only part of the body to sleep?