Statistically determined, in such conditions a 9 percent reduction in the number of cancers, strokes and heart attacks overall in men, and around 7 percent in women were obtained. No benefit was seen while taking aspirin for the first three years. “Whilst there are some serious side effects that can’t be ignored, taking aspirin daily looks to be the most important thing we can do to reduce cancer after stopping smoking and reducing obesity, and will probably be much easier to implement,” said Professor Jack Cuzick, head of the center for cancer prevention at Queen Mary University of London. The side effects are related to the risk of bleeding in the stomach and even in the brain. Bowel, stomach and esophageal cancer are especially prevented to occur by this simple drug containing acetylsalicylic acid, which was first synthesized by Felix Hoffmann, a chemist with the German company Bayer, in 1897. The basic known mechanism of aspirin’s effects is to act as an anti clotting agent that reduces the risk of clotting diseases.