Cincinnati, OH-KY-IN, Madison, WI, Little Rock-North Little Rock, AR,
Knoxville, TN, St. Louis, MO-IL, Nashville, TN,
Johnson City-Kingsport-Bristol, TN-VA, Chattanooga, TN-GA, Greenville-Spartanburg-Anderson, SC, Canton-Massillon, OH
There is a higher prevalence of migraine factors in these places.