Working nights may lead to more than just sleep deprivation, according to a study published in the American Journal of the National Cancer Institute, which reported a startling 60 per cent increased risk of breast cancer for women who had worked nights for more than three years. Why? Researchers think that night workers produce less of the sleep hormone melatonin, which in turn may cause their bodies to make more oestrogen, a hormone linked to breast cancer.
Graveyard shift risks
Working nights may lead to more than just sleep deprivation, according to a study published in the American Journal of the National Cancer Institute, which reported a startling 60 per cent...