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MOVE IT: An hour of moderate physical activity per day is enough to cancel out the deadly effect of sitting behind an office desk or watching TV, research has shown.

Scientists who analysed data on a million men and women found that sitting for more than eight hours a day without taking exercise significantly increased the risk of dying early.

People in this group — who include many thousands of office workers — were up to 60% more likely to die prematurely than more active and less sedentary individuals.