Primary headaches include migraine, tension, and cluster headaches, as well as a variety of other less common types of headache.
Tension headaches are the most common type of primary headache; as many as 90% of adults have had or will have tension headaches. Tension headaches are more common among women than men.
Migraine headaches are the second most common type of primary headache. An estimated 28 million people in the United States (about 12% of the population) will experience migraine headaches. Migraine headaches affect children as well as adults. Before puberty, boys and girls are affected equally by migraine headaches, but after puberty, more women than men are affected. An estimated 6% of men and up to 18% of women will experience a migraine headache.
Cluster headaches are a rare type of primary headache, affecting 0.1% of the population. An estimated 85% of cluster headache sufferers are men. The average age of cluster headache sufferers is 28-30 years of age, although headaches may begin in childhood.
Primary headaches affect quality of life. Some people have occasional headaches that resolve quickly, while others are debilitated. Tension, migraine, and cluster headaches are not life-threatening.