Aspirins health-boosting potential could extend beyond easing pain and preventing heart diseaseDavid Burton / AlamyImagine if a cheap, accessible and relatively safe pill could prevent cancer in those who have never had it and stop it from returning among those in remission. The idea that aspirin is such a wonder drug is the subject of intense research, but the picture is muddled.The notion that aspirin could have anti-cancer properties dates back decades. In 1988, researchers in Australia linked the painkiller to a lower risk of colorectal, or bowel, cancer. More than 100 of these observational studies