Other free radicals produced within the body are now understood to be more important.
Energy must be supplied to break the bonds between atoms to produce free radicals.
Each step produces additional free radicals, which then engage in further crosslinking.
For example, metabolic processes produce free radicals as a by-product of energy production.
They can then release this energy by breaking chemical bonds, thereby producing radicals.
It also exhibits inhibitory activity against the effects of free radicals produced by cigarette smoke.
There, it may serve as a photoprotectant for retina from the damaging effects of free radicals produced by blue light.
When your skin takes a beating from outside factors, such as the sun's ultraviolet rays, your body can produce free radicals.
The tumor necrosis factor ends up producing noxious free radicals within the T cells.
There are a great variety of these processes that produce fuel radicals and oxidizing radicals.