1. When glucose levels in the blood fall, hunger pangs occur in the stomach.
2. Ghrelin hormone is secreted in the stomach when it goes empty.
3. Ghrelin is secreted from certain cell walls of the stomach.
4. Hunger contractions (hunger pangs) start to occur in the stomach due to secretion of ghrelin hormone.
5. Hunger pangs continue up to 30 – 45 minutes.
6. An increase in Ghrelin levels results in sensation of hunger and motivation to consume food.