Wednesday, December 24, 2008

The benefits of green tea's antioxidant

By Collin James

I am sure by now you have heard all about the antioxidants found in green tea. But, do you know what antioxidants are or how they work. The quality of a antioxidant can help prevent harmful diseases such as cancer and heart disease. I suppose your wandering why anything that is anti-oxygen can be good for your body.

Antioxidants don't work against oxygen. They fight against a chemical reaction called oxidation, this is the same process that turns bananas black and rusts metal. Oxidation is the interaction between oxygen molecules and the substances they come in contact with. When that substance happens to be living tissue, damage and disease can occur.

Free Radicals with in your body are highly unstable molecules that travel around your body causing nothing but major problems. Free radicals are generated by exposure to UV rays, toxins,smoking and other sources. The major source of the free radicals is from the oxygen molecule its self.

Oxygen usually travels through your body paired up with another oxygen molecule. In some cases this pairing splits into two individual oxygen molecules called singlet oxygen. When this occurs, electrons fall in short demand as there are now to many oxygen molecules. This destabilizes the molecule and in a way, throwing it off balance. In the attempt to try and fix itself it races through the body trying to find an other electron.

But singlet oxygen doesn't just wait for a spare electron to float on by. Instead, it boldly steals one from some other molecule. This destabilizes the "new" molecule which, in turn, careens off to steal an electron from yet another molecule. The process of serial "electron stealing" damages cells, tissues, organs and even entire body systems, and is believed to be a major cause of cancer, heart disease, aging and many other conditions.

Antioxidants work against "electron stealing" by neutralizing and stabilizing free radicals. They do this by donating an electron so that singlet oxygen and other free radicals no longer have the urge to "steal." And while the body does produce a certain amount of antioxidants for the express purpose of taking care of such problems, it also needs the added help of antioxidants found in foods.

Among others, these include beta-carotene, vitamins C and E, the mineral selenium, and various phytochemicals such as lycopene and quercetin. But the catechins, especially EGCg, are among the most powerful and effective antioxidants of all. - 15995

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