Many people's life disturbed from headache and it is not normally disease and need action against this disease immediately. I we study about cause of this disease then we afraid to know about that disease and i agree with your comment "third highest cause of years lost due to disability." @badmusgreene 's product awesome and great for relief from headache. Small surgery with this product can relief from migrant. Thank you friend, you share such a nice and great hunt for relief from a big disease.