February 19, 2009 
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A free radical is an atomic structure with an unpaired electron in its outermost shell. These unpaired electrons tend to be highly reactive, resulting in chemical reactions such as oxidation. Because they have one or more unpaired electrons, free radicals are highly unstable. They scavenge the body to grab or donate electrons, causing damage to cells, proteins and DNA.
F
ree radicals are naturally occurring; however, air pollution, stress, smoking, heavy exercising and aging all contribute to the creation of harmful free radicals. Free radicals can cause oxidative damage to the body, potentially leading to serious health problems. Normally the body is able to protect itself from the damaging effects of free radicals, but if antioxidants are unavailable, or if free radical production becomes excessive, damage can occur.
