Men who work nights 'three times more likely to develop prostate cancer' - Night shifts also doubled a man's chances of developing bowel cancer - Night shifts are thought to harm the body through the suppression of the hormone melatonin





By Pat Hagan
Men who work nights are almost three times as likely to develop prostate cancer as those who do day shifts, new research shows.
They are also at much greater risk of a number of other types of cancer, with higher rates of tumours in the bowel, bladder and lungs.
The alarming findings, based on a study carried out in Canada, are the first to highlight the full effects of night shifts on men’s health.

Although previous studies have suggested a link with cancer, most have focused on the higher incidence of breast cancer in women working nights, mainly nurses.
The latest investigation, by a team of researchers at the University of Quebec, suggests men are affected in the same way and that the effects are seen in a wide range of cancers.
Night shifts are thought to harm the body through the suppression of melatonin, a hormone produced by the pineal gland in the brain that helps regulate when we sleep and when we wake.
When it’s dark, melatonin output is increased to help induce deep sleep.
Production normally peaks during the dark hours of night.

Source: dailymail



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