According to the British “Daily Mail” report, a study shows that a bad night’s sleep not only puts you in a bad mood, but also makes you in pain and discomfort all over the body, and sleep-deprived people’s body is plagued by pain the odds of an increase of 66%. Researchers at the Norwegian University of Science and Technology (NTNU) followed thousands of people for more than 10 years to reach this conclusion. The new study, published in the European Journal of Public Health, showed that more than 27,000 Norwegian women and men were surveyed, and none of the subjects had a history of chronic back, neck and shoulder pain. They were put into different groups according to their sleeping habits, and after 11 years, they were surveyed again to see which group was more likely to have back pain. Women who occasionally slept poorly were 32 percent more likely to have back pain than those who slept well, and those who hardly slept at all were 66 percent more likely to have back pain. The results for men were 30 percent and 54 percent, respectively. The worst-sleeping group of women were 53 percent more likely to have neck and shoulder pain, and men were 58 percent more likely. According to the study, it provides credible evidence that poor sleep is an independent risk factor for chronic muscular and back bone pain, due to the fact that poor rest can increase protein levels in the blood, leading to a state of mild inflammation throughout the body, causing a response from the pain system. Therefore the way to reduce chronic shoulder and back pain lies in improving sleep, necessary physical activity and weight maintenance.