Regulates Qi ascending and descending to the head
Vertically 0.5–1 cun.
Caution: Carotid artery.
As a Window of Heaven point, Tianyou TB-16 regulates the Qi ascending and descending to the head.
On the other hand, it stimulates the ascending of Qi to the head. When insufficient Qi goes to the head, sense orifices suffer and causes symptoms such as sudden deafness, blurred vision, excessive lacrimation, sneezing, nosebleed or loss of sense of smell.