Whether you suffer from the annoyance of your typical headache every so often or know someone who has migraines once a week, it can be understood that headaches are some of the most ambiguously specific ailments one may (or may not) encounter in life.
If that statement left you with a headache, Welcome to the Club!
But really, what is a headache? Many sources indicate that a headache is simply a pain in your head caused by a number of factors (1), however if you are interested in the specifics of headaches you could be studying for years, as there are over 150 diagnostic headache categories. (2) From a pathological standpoint, there are two categories of headaches: primary and secondary. Primary headaches are not related to any serious condition and generally occur with the stresses of life. Secondary headaches are symptoms of other potentially serious problems.
Within these categories there are the subcategories of tension-type headaches, migraine headaches, cluster headaches, and...