glucose in our blood is low
Hunger and satiety is a sensation. Hunger can represent the need for food physiologically. This is also associated with the contractions of stomach or intestine and can be described as the emptiness. The role of glucose in hunger is well studied. The drive to eat can be produce by the damage to some parts of the brain, commony in the hypothalamus and pituitary area. When these happens animals or humans can be a voracious eater.
