So oxidation causes free radicals and free radicals damage cells.
This explains why anti-oxidants are the body's defence
against free radical damage.
The importance of anti-oxidants is underlined by the fact that
unstable free radicals behave very aggressively towards biological
tissues, ransacking them for replacement electrons.
This can create yet more unpaired electrons and thus more free
Chain reactions of destruction can occur where thousands of free
radicals can be generated in seconds, unless the body's
defences catch them in time. And to do that your body needs to
have strong anti-oxidant defences - in the same
way as it also needs a strong immune system.