This study doesn’t appear to explain why aspirin helps, but just establishes a correlation.
I would assume the reduction of inflammation helps the body respond to cancer and heart disease.
One thing that troubles me about this is that I don’t think that we get cancer because we have an aspirin deficiency. If I am correct, then I wonder what else is deficient in our diet that makes us need aspirin to keep us healthy?
I started taking those baby aspirins 81mg about a year or more ago.