It really is a wonder drug.

Aspirin, the 100-year-old painkiller, has been found to cut the risk of dying from a range of common cancers if taken at a low dose once a day, a new study shows.

The study, published today in The Lancet medical journal, also found that the longer people took the drug, the better the protection against dying from prostate, lung, esophagus, brain and pancreatic cancers.