Exercise and free radicals.

Medical Update | April 1, 1998| | Copyright

We've talked a lot about those mysterious "free radicals" over the last couple of years -- and about the antioxidants that combat them. As you may recall from high-school chemistry, the nucleus of an atom carries a positive electrical charge neutralized by the negatively charged electrons that surround it. Should the atom lose some of its negative charge, it becomes unstable and moves about, seeking electrons from other atoms to regain stability. Such an unstable atom is called a free radical -- and free radicals are constantly being generated in the body by normal and ...

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