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What are headaches? Why do people get headaches? What is the major cause of headaches?

This is a rather detailed question. Simply stated, headaches are discomfort associated with the head. There are many causes of headaches: eye strain, fever sinus infection, and allergies. Headaches are classified as either acute or chronic. Acute headaches are those that occur rarely and last only a short time. Chronic headaches are more painful and tend to last longer.

Bob W Whitbeck

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