One would think that we would know all there is to know about a compound first commercially ... But, no, it seems that the more we learn about aspirin, this incredible molecule, the less certain ...

Aspirin is a non-steroidal anti-inflammatory drug (NSAIDs) containing salicylate. This compound is found in willow trees and myrtle. Some people use these natural ingredients to treat pain.

Scientists believe they have discovered how the cheap painkiller aspirin can stop cancers spreading. In animal experiments they showed the drug enhanced the ability of the immune system to fight back.