Men who drink heavily may be raising their risk of developing prostate cancer, researchers reported Monday.
What's more, their study found, the drug finasteride, which can help lower a man's risk of the disease, appears unable to undo the damage of heavy drinking.
The findings come from a clinical trial of nearly 11,000 men looking at whether finasteride lowered the risk of prostate cancer over seven years. Of the men, 2,219 were diagnosed with prostate cancer, and 8,791 remained cancer-free throughout the study.
The researchers found that men who drank heavily -- four or more drinks per day, on at least five days out of the week -- were twice as likely as non-drinkers to develop aggressive prostate tumors.