A study of existing research found strong evidence of a direct, harmful effect of drinking, even though scientists are unsure of the exact biological reasons why alcohol causes cancer.
Writing in the journal Addiction, Jennie Connor, from the University of Otago in New Zealand, said alcohol is estimated to have caused about half a million deaths from cancer in 2012 alone - 5.8% of cancer deaths worldwide.
The highest risks are from heavy drinking, but even people who drink at low levels are at risk.
Source: The Irish Examiner, 22/07/16
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