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We see this with alcoholics walking down the street,
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seeing a bar that they used to drink at,
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or an advertisement for their favorite beer.
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There will be physiological changes
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and they'll begin to crave the alcohol
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because the body will want it to normalize the changes
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that it just undertook.
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We see this across humans as well that
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when you restrict food, whether you're lean or obese,
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you'll have a little bit of this glucose withdrawal
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which can end up, in some cases,
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being so severe that it results in hypoglycemia