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A decrease in blood glucose levels acts as a chemical trigger for hunger. In response to low glucose, the pancreas and liver produce chemical signals that are sent to the brain, inducing the sensation of hunger and motivating the individual to eat.

Low Blood Glucose as a Hunger Signal

A person consumes a high-sugar candy bar on an empty stomach. About an hour later, they report feeling even hungrier than before they ate. Which of the following provides the most accurate physiological explanation for this 'rebound hunger'?

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