Addiction exposes the deepest forms of physical and psychological dependency.

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Like those dealing with serious addiction, one can take a path to detoxification which would rid the body of its ills at the price of a horrible physical experience, or one can keep feeding an addiction, perhaps in moderately reduced doses, in order to avert the pain.

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Instead, it's best to treat the addiction as a medical problem and stress the physical consequences of it, Johnson said.

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Melissa Kit Chow, a graduate of the Harvard Graduate School of Design, designed a garment that will only fuel our Facebook addiction: Chow's "Like-A-Hug" vest gives you a physical hug whenever one of your Facebook friends "likes" your status update.

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