Hunger isn’t purely about need — it’s entrained to your circadian clock. Research by Cummings shows ghrelin rises in anticipation of meals, not just response to need. You feel hungry at noon even after late breakfast because that’s when you always eat. Patterns can be retrained by consistently eating at new times within one to two weeks.
This companion covers circadian control, the anticipatory rise, evidence for timing over need, and practical implications. (3 min read)