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Strong Support

The rats ate more because of the brain receptor change—not because they were moving around more or less.

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Evidence from Studies

Supporting (1)

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6

Role of ventromedial hypothalamic dopaminergic D1-like receptors in regulating standard food intake in 24-hour food-deprived male rats.

Cohort Study
Animal
2025 Sep 15

The scientists found that making a specific brain area more active with dopamine made hungry rats eat more, but it didn’t make them move around more—so eating more wasn’t just because they were more active.

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No contradicting evidence found

Source Study

Role of ventromedial hypothalamic dopaminergic D1-like receptors in regulating standard food intake in 24-hour food-deprived male rats.

Score: 6
DOI: 10.1016/j.brainres.2025.149846

Similar Assertions

A certain type of brain chemical signal in the hunger center of fasted rats helps tell them to eat more.

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When scientists turned on a specific type of brain receptor in the hunger center of fasted rats, the rats ate more food—and when they turned it off, the rats ate less.

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A part of the rat brain called the ventromedial hypothalamus helps control eating when the rat is hungry, and dopamine signals through D1 receptors are part of how it works.

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