How do we know our hunger and our stomach is full?
our stomach and brain are constantly communicating with each other. With the help of hormones and nerves. The stomach produces a hormone called ghrelin. Ghrelin generally travels to the brain through blood and informs the brain that we need to eat and thus, we feel hungry. Now, when we eat food to satisfy our hunger, the food enters our stomach, causing its walls to stretch and expand.
When this happens. The nerves on the stomach walls detect the expansion and tell the brain that our stomach is full and our hunger is satisfied.
When we begin to eat. Nutrients in food stimulate the release of cholecystokinin which eventually enters the bloodstream. It is the presence of this cholecystokinin in the blood. Which informs the brain that we are eating food and not just drinking water. Now, as we eat more food, more cholecystokinin is released. Informing our brain that our stomach is getting full with food.
No comments:
Post a Comment