American Academy of Neurology Apr 17 2026 Air pollution is associated with increased migraine activity, according to a study published on April 15, 2026, in  Neurology ® , the medical journal of the American Academy of Neurology. Both short-term and cumulative exposure to air pollution as well as climate factors such as heat and humidity were associated with increased migraine activity. The study does not prove that air pollution causes migraine attacks; it only shows an association. These