A meta-analysis found that symptoms followed a circadian pattern in 50% of migraine patients.
Notes on verification
Confirmed by the original peer-reviewed meta-analysis in Neurology (2023), independent Medscape reporting, and AAN press release, all citing the same 50.1% (2698/5385) figure across 8 studies. [cascade flags: aggregator_dropped_primary_exists | tier=unverified indep_score=0.3 clusters=2 claim_tier=notable] [rescored 2026-09-15: curated origin-host map (PR #65); unclassified hosts no longer scored as aggregators]
Sources
- Migraine and Cluster Headaches are Linked to the Body's Internal ... (seed:health_and_medicine)
- https://www.neurology.org/doi/10.1212/WNL.0000000000207240 (corroboration)
- https://www.aan.com/PressRoom/Home/PressRelease/5067 (corroboration)