Headache is pain that occurs in the head. Headaches are extremely common, and can be ‘primary’, such as migraine, tension-type headache and cluster headache, or ‘secondary’, meaning that they are a consequence of another disorder. Migraine is associated with strong headaches that are usually accompanied by nausea and/or sensitivity to light and sound. During a migraine headache, which last for hours or days, a person is unable to go about their daily life. Tension-type headaches are, in general, milder and not associated with nausea while cluster headaches are a relatively rare and extremely painful type of headache usually felt around a person’s eye or temple.
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