Ghrelin follows your established eating patterns, rising in anticipation of meals and falling whether or not you actually eat. Research by Cummings shows ghrelin operates as an anticipatory signal, not a continuous hunger alarm. That 12pm hunger is part genuine signal and part learned timing — and the learned part is what shifts when you change the pattern.
This companion covers ghrelin basics, the anticipatory pattern, adaptation to new schedules, and practical implications for fasting. (3 min read)
Written by AI, directed and approved by me. How this is made →