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A new study working shifts at night can be to one's health. In particular, it the risk of several cancers, diabetes, mental illnesses, and various heart diseases. Researchers from the Sleep Research Centre at the U.K.'s University of Surrey that many genes in the body to a regular 24-hour cycle, during which the body at night. If this cycle is , up to 1,500 genes could get damaged, eventually resulting in potentially life-threatening diseases. Professor Derk-Jan Dijk said: "The study has important implications because we now to why these rhythms exist and think about the consequences of that."

The human body has around 24,000 genes. Many of these off if the body does not a regular sleeping pattern. This can parts of the immune system to become less efficient, us more susceptible to illnesses. Study co-author Dr Simon Archer said: "Over 97 per cent of rhythmic genes out-of-sync with mistimed sleep, which really why we so bad during jet lag or if we have to work irregular shifts." Dr Dijk said that despite the results of the research, it would be difficult for people to their lifestyles. He explained it was difficult for society to without people working night shifts, but said people needed to understand the dangers and " the impact".