Migraine is a condition characterized by sudden bouts of throbbing headache often unilateral (pain localized to one side of the head). Migraine can last from a few hours to days. The pain may be accompanied by other manifestations like nausea, vomiting and visual disturbances. Each year, the number of people worldwide seeking medical treatment for recurrent headache has been on the increase. Tension headaches are very common and occur in adults of all ages and gender throughout the world. Women in their early childbearing years are the most susceptible, particularly just before or during menstrual periods. Cluster headaches are most common in men of about 30-40 years of age. The incidence of migraine is much higher in those engaged in stressful work, involving much mental activity like businessmen and scientists. It is also more common in nervous and highly emotional individuals.
