Sleep problems linked to men's cancer risk

May 7, 2013 12:56:09 PM PDT
Men who have a hard time staying asleep may be at a higher risk of prostate cancer, according to a new study from Icelandic and American researchers.

Experts say a possible explanation is that disturbed sleep inhibits the body's production of melatonin, which can help suppress cancer growth. They also say depression and stress could also be factors.

The study is published in Tuesday's journal Cancer Epidemiology, Biomarkers and Prevention.


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