Getting your sun tan on is no longer seen as the main culprit behind skin cancer. According to the latest studies, the number of moles that you have could be a better indication of your risk factor.
According to Times:
“The authors of the research paper maintain sunshine causes only a small proportion of melanoma cases. They believe health warnings would be more useful if they focused on people who have more than 100 moles, and taught them to check regularly the moles for changes in shape, size or colour.”