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A good definition of Free Radical
from LEF
Free radicals are the products of oxidative reactions in the body. They are highly reactive compounds that take electrons from other molecules to stabilize themselves. In this process of electron “theft”, a new free radical is created, namely, the molecule from which the electron was taken. That new free radical then practices “theft” on another nearby molecule, and a chain-reaction cycle of cell destruction begins.
It is important to realize that oxidation is a normal part of life as are free radicals. Oxidation is what enables us to get and use energy from our food. When free radicals are produced in excess, however, they are so damaging that the body maintains a sophisticated antioxidant system to hold them in check.
However, when the body’s prolonged exposure to oxidative factors causes an excessive output of free radicals that exceeds the body’s ability to neutralize them (technically called “oxidative stress”), the body is put in an increasingly vulnerable position due to accelerated cell destruction.
Antioxidants are substances that neutralize free radicals.
from LEF
Free radicals are the products of oxidative reactions in the body. They are highly reactive compounds that take electrons from other molecules to stabilize themselves. In this process of electron “theft”, a new free radical is created, namely, the molecule from which the electron was taken. That new free radical then practices “theft” on another nearby molecule, and a chain-reaction cycle of cell destruction begins.
It is important to realize that oxidation is a normal part of life as are free radicals. Oxidation is what enables us to get and use energy from our food. When free radicals are produced in excess, however, they are so damaging that the body maintains a sophisticated antioxidant system to hold them in check.
However, when the body’s prolonged exposure to oxidative factors causes an excessive output of free radicals that exceeds the body’s ability to neutralize them (technically called “oxidative stress”), the body is put in an increasingly vulnerable position due to accelerated cell destruction.
Antioxidants are substances that neutralize free radicals.
