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Headache: Studies
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Today, more than 28 million Americans suffer from chronic severe headache. Studies of twins show a strong hereditary factor, with about half of the susceptibility to headaches linked to genetics and half to environmental influences. Chronic severe headaches cost U.S. employers an estimated $13 billion per year in lost productivity.
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Many causes of headache have been described in the medical literature over the years. In 1988, the International Headache Society published a long, detailed classification of headache, which has proved helpful for research purposes because it has led to more reproducible and reliable studies in the field of headache. This classification was recently revised and updated.1 For practical clinical purposes... all headaches can be classified as one of the primary headache syndromes or as a headache that is caused by or secondary to an underlying disease process or condition.
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Studies have shown that sodium increases before and during headache periods. Make note in your diary of any foods or drinks you may have had shortly before an attack to see if you have ingested too much sodium.
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