
Causes and Treatment of Migraine
How migraines develop is not well known. It is believed that migraines are caused by activation of nerves in the face (trigeminal nerves). Specifically, nerves that sense pain (nociceptors) and also stimulate blood vessels in the head are activated. Stimulation of the blood vessels by these nerves then stimulates regions of the brain involved in pain perception, such as the thalamus and various regions in the cortex.