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Updated: Aug 6, 2026
10:39
3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
Published on: June 2, 2014
Seasonal variation in migraine
K B Alstadhaug1, R Salvesen, S I Bekkelund
1Department of Neurology, Nordlandssykehuset 8092, Bodø, Norway. karl.bjornar.alstadhaug@nordlandssykehuset.no
Cephalalgia : an International Journal of Headache
|September 16, 2005
Summary
Migraine with aura patients experience more headaches during the arctic summer
Area of Science:
- Neurology
- Environmental Health
Background:
- Previous research indicates migraineurs experience more headaches during bright arctic summers.
- Seasonal light variations present extreme conditions in arctic regions.
Purpose of the Study:
- To investigate the impact of seasonal light exposure on migraine with aura (MA) and migraine without aura (MoA).
Main Methods:
- A questionnaire-based study of 169 female migraineurs in an arctic region.
- Categorization of patients into MA (98) and MoA (71) groups.
- Assessment of seasonal variation in migraine attack frequency and triggers.
Main Results:
- 63% of patients reported seasonal variation in migraine frequency.
- 47% of MA patients reported increased attacks during the light season, compared to 17% of MoA patients (P < 0.001).
- MA patients reported higher rates of light hypersensitivity, light as a trigger, and sunglasses use.
Conclusions:
- Seasonal periodicity of migraine, particularly increased attacks during the light season, is evident in MA but not MoA.
- Light exposure appears to be a pivotal factor in seasonal migraine variations for MA patients.
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