Notching up plenty of bedroom conquests can nearly double your cancer risk, a study reveals.
Experts found older women who had ten or more lifetime lovers were 91 percent more likely to be diagnosed with the disease, compared to those who only had one.
And promiscuous men saw their chances of a tumour rocket by 69 percent.
Many cancers – such as cervical, prostate and oral – are linked to sexually transmitted infections.
Anglia Ruskin University scientists think this is the reason why adults with large numbers of partners are more likely to be diagnosed with the disease.
Writing in the journal BMJ Sexual & Reproductive Health, lead researcher Dr. Lee Smith said: “In both men and women, a higher number of sexual partners was associated with increased risk of cancer.