Ghrelin
The "hunger hormone," released by the stomach before meals to stimulate appetite and drive food-seeking; it falls after eating. Poor sleep raises it.
Too little may be associated with
Reduced appetite.
Too much may be associated with
Increased hunger and calorie intake; elevated by sleep deprivation and dieting.
Informational only — not medical advice.
Organ systems
Stimuli that influence it
Behaviors
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