What aspirin does, among its other effects, is to block the action of that COX enzyme.

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We found that people who regularly used Aspirin and other NSAIDS had significantly lower risks of developing skin cancer than people who did not use them.

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And so what we think it's doing is that in people who are using aspirin regularly, over a long period of time, they are actually inhibiting any little early skin cancers they might have in their skin.

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Moreover, we found that among people who had never had skin cancer, those who regularly used aspirin had significantly lower numbers of sunspots.

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In a smaller analysis, looking at people who used aspirin eight or more times a week, for at least a year, they had about a 90 per cent reduction in risk.

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