A concise discussion of headache types, Part 1.

Except for head colds, headaches are probably the most common human ailment, and historical evidence supports the fact that earlier man suffered from ailments of the head. With over 150 diagnostic headache categories having been established, the diagnosis and treatment of headache is not a simple process. The severity, symptoms, and causes of headache vary. This article, which is Part 1 of a three-part article, provides a concise discussion about the types of headache, as well as brief discussions on some of the causes and treatments of headache.