Where does biological oxidation take place in the human body?

Biological oxidation is the gradual aging process of the
body. Oxidation basically occurs all over the body and at a cellular level. There is an
oxidation reaction theory that states that oxygen reacts within the body and produces
by-products called free radicals. A free radical is an oxygen molecule that has lost an
electron. Since it is now in an unstable state it tries to steal an electron from
another molecule. By doing so the radical may cause damage or even destroy the
surrounding cells. Free radicals are thought to be a cause of
cancer.

Over time, these radicals build up and aging
occurs.