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Watching sad or traumatic movies can sometimes just what the doctor . A new study reveals that watching distressing movies may our tolerance to pain. Researchers at Oxford University say that movies that your emotions going can the amount of endorphins by the brain. These our body's natural painkillers - chemicals that make us better after physical or psychological pain. Dr Robin Dunbar, a co-author of the study, explained that: "Maybe the emotional [distress] you get from tragedy triggers the endorphin system." He added: "The same areas in the brain that with physical pain also psychological pain."

Dr Dunbar and his colleagues a series of tests to the effect that tragic stories have on us. They 169 people to part in the experiment. One group a traumatic drama about a disabled man battling homelessness, drug addiction and alcoholism. Another group watched a documentary on the geology and archaeology of Britain. The results that on average, the pain tolerance of those who watched the traumatic drama by 13.1 per cent. This to an average decrease in pain threshold of 4.6 per cent for those who watched the documentary. Dr Dunbar one reason we watching sad movies is the natural high from the endorphins.

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