At least 36 million Americans suffer from migraines, and while more and more medical professionals are on the case, they have never found satisfactory answers for why the pain starts, let alone how to make it end.
Lately, it seems I can't attend a gathering of friends without at least one complaining about headaches, and another offering advice: It's your glasses, your diet or, the old standby, your stress level. Regarding the latter, let me say that a friend and I once spent four days at a spa, doing nothing but exercise classes and beauty treatments, and we were still popping pills for our pounding heads nonstop.
Over the last few decades, migraines (intensely painful headaches that make it difficult to function and are often accompanied by other symptoms like vomiting) have become big business. Billions of dollars are spent annually on over-the-counter and prescription remedies, as well as visits to the increasing number of specialized clinics and hospital departments around the country. Even dermatologists, dentists and non-Western holistic practitioners are getting in on the action.
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http://www.nytimes.com/2015/12/13/opinion/sunday/where-is-the-cure-for-the-migraine.html?