Free radicals are atoms that lost an electron to. Can occur at any time, either from respiratory? The process of metabolism Stress or toxic environment. Which makes it a must to compete for other molecules, molecular electrons from the electron's it will go is from another molecule so it is called a chain reaction which is causing, the cells have been damaged, causing the body's degeneration and premature aging, so we must.Invalid antioxidants, Antioxidant, which is a substance or be able to catch up with free radicals. Our body can manufacture in the form of enzymes, such as Glutathione, but if there are too many free radicals. The body needs to get antioxidants from vitamin c foods such as betacarotene, including various plant extracts.