Huge study from China shows substantial reduction in GI cancers and some others.
Here’s the quote from the authors:
The findings demonstrate that the long-term use of aspirin can reduce the risk of developing many major cancers […] What should be noted is the significance of the results for cancers within the digestive tract, where the reductions in cancer incidence were all very substantial, especially for liver and esophageal cancer.
For those who can’t take aspirin, similar results were obtained with Non-steroidal anti-inflammatory agents.