DO NOT GO CRAZY ON THIS...go ask your doctor.
"New research from Newcastle University seems to support the theory that aspirin may have a preventive effect.
Also published in the Lancet, it shows that, over two years, taking aspirin reduced the incidence of bowel cancer by 63% in a group of 861 people who were at high risk of the disease because they had Lynch syndrome.
Last year's study had been designed to look at preventing heart disease, but it also found that long-term use of aspirin reduced deaths from cancer by around 25%."