How an orgasm a day can slash a man's cancer risk

Men who have regular orgasms - once a day - are less likely to be diagnosed with prostate cancer, a study has found.

Regular ejaculation throughout their lives reduces the risk of the disease, scientists discovered.

The researchers, from Harvard Medical School, said they could not explain why orgasms could lower prostate cancer risk, adding further research is necessary.

However it has previously been suggested that regular orgasms may flush out cancer-causing chemicals in the prostate.