Our craving for sugar comes from the gut. Neurons recognize the glucose in the intestines after it has been infested and converted from sugar. They send a signal to the brain. We learn to associate foods that contain sugar even if they don’t taste like it through these circuits. We learn to associate the texture, viscosity,…

The brain leads to associate the taste, the likes and dislike, with the signals from the gut, which measures what you need (protein, sugar, fat) and causes craving.

Another hormone affected by sleep is ghrelin. Secreted by the stomach, ghrelin tells your brain when it’s time to be hungry. Your ghrelin level increases just before meals or when the stomach is empty and decreases after meals or when the stomach is stretched. This hormone can also impact your behavior: when mice and humans are injected with ghreli

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