Why do food cravings seem to get worse when you’re dieting?
'The UTMB team took rats that had been on a 30-day low-fat diet and trained them to work for fatty treats by pressing a lever. In order to measure craving and motivation, the amount of times needed to press the lever to receive a treat was increased until the rat gave up trying. In half the rats, the researchers blocked the effects of a brain chemical called neuromedin U receptor 2 within a region of the brain that regulates food intake. The other half were the control group, and did not undergo this procedure.'
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