The staff of King's College Hospital reflect on the different ways in which people deal with physical and emotional pain as they treat a new batch of patients. Ahmed, 28, dislocated his shoulder during a game of American football and grits his teeth as a doctor slots it back into place. Meanwhile, 24-year-old Lee is living with Behcet's disease, a condition that affects his nervous system and causes pain so severe he passes out, and father-of-four Simon, 30, has been found unconscious at the bottom of a stairwell and it emerges he hasn't eaten for days following a relationship break-up