27th May 2010
Free radicals are molecules that lose electrons, so that the molecules become unstable and are always trying to take electrons from other molecules or cells. Free radicals can be generated from the metabolism of the body and external factors such as cigar...
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26th May 2010
Probably, some of us may have experienced choosing a wrong item when in the shopping mall. Such as purchasing a pair of shoes that look attractive when displayed in a shop window, but when they are worn, the shoes make your legs hurt. Actually, we can avo...
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