Hunger is a behavioral state in which intense food seeking and consumption is elicited. Hunger involves sensory neurons that monitor metabolic signals and regulate food seeking and consumption behaviors. These behaviors are repeated by activation of starvation-sensitive AgRP neurons. AgRP neurons are brain cells in the hypothalamus region of the brain. AgRP neurons sense when the body is running low on calories and can drive feeding behaviors. AgRP neurons do this by releasing inhibitory molecules that lessen the activity of cells downstream (which promote feelings of fullness) in the neural circuit. Once the activity of cells is lessened, the feeling of hunger, and the drive to consume food is caused . AgRP neurons release the molecule AgRP,
