Hypothalamus, appetite control

Hypothalamus-pituitary-adrenal (HPA) Axis Circadian Rhythms Appetite Control Orexins... 

The area of the brain enclosing the third ventricle is the diencephalon. This area consists of several important structures, including the thalamus and hypothalamus. The thalamus contains distinct nuclei that are crucial in the integration of certain types of sensations and their relay to other areas of the brain (such as the somatosensory cortex). The hypothalamus is involved in the control of diverse body functions including temperature control, appetite, water balance, and certain emotional reactions. The hypothalamus is also... 

The motion of the body-mass set point had led scientists to postulate that there must be a homeostatic signal from the fuel stores of the body to the brain. This has been referred to as a lipostat which can communicate the level of fuel stores to the brain to alter the appetite and metabolic rate control centers in the brain. In 1995, the hormone leptin was discovered. It is secreted by white adipose tissue at a rate that is proportional to the size of the fat reserves. The hypothalamus in the brain influences energy intake and expenditure, and it possesses receptors for leptin. Binding of leptin reduces food intake and increases whole body BMR. 

---