Opioid binding in the hypothalamus. 5A) MOR binding viewed on a coronal slice at the level of a rostral section of the hypothalamus 5B) Enlarged view of MOR of a rostral section of the hypothalamus 5C) MOR binding viewed on a coronal slice at the level of a caudal section of the hypothalamus 5D) Enlarged view of MOR of a caudal section of the hypothalamus 5E) KOR binding viewed on a coronal slice of the hypothalamus 5F) Enlarged view of KOR binding of the hypothalamus AHA: anterior hypothalamic nucleus, Arc: arcuate nucleus, BNST: bed nucleus of the stria terminalis, DMN: dorsomedial nucleus, Hypoth: hypothalamus, MPOA: medial preoptic area, PVN: paraventricular nucleus, SCh: suprachiasmatic nucleus, SON: supraoptic nucleus, VMN: ventromedial nucleus