Women who sleep less than six hours a night ‘more likely to develop breast cancer’ - Daily Mail 3rd November 2008

Women who regularly sleep six hours or less a night may be raising their risk of breast cancer by more than 60 per cent, say researchers. A major study suggests burning the candle at both ends dramatically increases the risk of developing a potentially life threatening tumour. Scientists believe sleep disruption interferes with production of a vital hormone called melatonin, which could play an important role in protecting against cancer.

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