title: Arctic environment triggers migraine attacks.
authors.affiliation: Department of Neurology, University Hospital of North Norway, 9038 UNN, Tromsø, Norway. hallvard.lilleng@unn.no
authors.forename: Hallvard
authors.initials: H
authors.lastname: Lilleng
authors.forename: Svein Ivar
authors.initials: SI
authors.lastname: Bekkelund
mesh_terms: D000328:Adult; D001110:Arctic Regions; D002940:Circadian Rhythm / Q000502:physiology; D003080:Cold Temperature / Q000009:adverse effects*; D004777:Environment; D005260:Female; D006801:Humans; D008598:Menstruation / Q000502:physiology; D008875:Middle Aged; D008881:Migraine Disorders / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy; D009664:Norway; D012621:Seasons; D013493:Suprachiasmatic Nucleus / Q000502:physiology