40 million Americans have frequent headaches.
Headache accounts for more lost work productivity than any other cause.
Tension type headache (TTH) is the most common type of headache.
Because it is so common, it results in a greater cost burden than any other type of headache.
69% of men and 88% of women will experience TTH during their lifetime.
TTH can be chronic (more than 15 days per month.)
Twice as many women as men have chronic TTH.
Up to 16 million each year suffer with sinus headaches.
Cluster headache is relatively uncommon, but extremely painful.