How common: At least 90 percent of Americans have a headache sometime in a year.
Risk factors: Stress, family history, food sensitivities, disrupted sleeping or eating patterns.
Age group affected: While everyone is subject to headaches, they occur most frequently between the ages of 35 and 45.
Gender gap: Women are three times more likely than men to get migraines, and have a higher overall rate of headaches. Men are equally as likely, as women to suffer from tension headaches, but are much more likely to get cluster headaches—for every woman suffering from a cluster...