Men who have more sex in their 20s and 30s may have a higher risk of prostate cancer, according to a new Nottingham University study.
The research team said that higher levels of sex hormones lead to a more intense sex drive and increased risk of the cancer.
More than 400 men diagnosed with prostate cancer were asked how often they had sex or masturbated. Those responses were then compared to the answers of 409 men who were free of the disease.
"Hormones appear to play a key role in prostate cancer and it is very common to treat men with therapy to reduce the hormones thought to stimulate the cancer cells," said Dr Polyxeni Dimitropoulou, leader of the study.
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