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A migraine is a type of headache. It may occur with symptoms such as nausea, vomiting, or sensitivity to light and sound. In many people, a throbbing pain is felt only on one side of the head. Many scientists think migraine is a vascular disorder caused by a tightening (constriction) and sudden opening (dilation) of the blood vessels in the head, neck, or scalp. Others believe that an abnormal release of neuro-chemicals in the brain, such as serotonin or noradrenaline may cause the throbbing pain of migraine. In Ayurveda, two conditions, known as Ardhaavabheda (meaning literally the unilateral pain) and Anantavaata resemble the classical migraine caused due to intestinal swelling or gallbladder swelling.
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