Researchers say both too much and too little sleep in linked to a double risk of fetal cardiovacular disease. Teams from the University of Warwick and Universty collage London examined sleep patterns and death rates over two decades among 10,308 civil servants.
They found a doubled risk among those who cut their sleeping from seven to five hours a night compared to those who stuck to seven hours a night. But risk was similar for those who increased to at least eight hours. Our finding indicate that consistently sleeping around seven hours per night is optimal for health.
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