The World Health Organization (WHO) reports that 18 percent of women in the United States and six to eight percent of men have migraine disease.
Based on current United States population statistics from census.gov, the WHO percentages translate to
More than 29,777,026 American women with migraine and
More than 11,150,676 American men with Migraine,
A total of nearly 41 million Americans with migraine as of October, 2016.
The best estimate is that two percent of the U.S. population has chronic migraine, which translates to more than seven million people who have a migraine or headache more often than not.
Globally, 959 million people had migraine disease in 2015.
Impact:
Migraine is the 6th leading cause of all global disability.
Medication overuse headache is the 20th leading cause of all global disability.
Medication overuse #headache contributes 45% more than epilepsy to the global burden of disability.