A meta-analysis found that symptoms followed a circadian pattern in 71% of cluster headache patients.
Notes on verification
Confirmed by peer-reviewed meta-analysis (Benkli et al., Neurology 2023) reporting 70.5% (~71%) circadian pattern prevalence across 16 studies/4953 patients; corroborated by AAN press release and multiple independent medical news outlets, plus a 2025 follow-up citing the same figure. [tier=gold indep_score=0.838 clusters=4 claim_tier=notable]
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://pubmed.ncbi.nlm.nih.gov/36990725/ (corroboration)
- https://www.aan.com/PressRoom/Home/PressRelease/5067 (corroboration)
- https://www.news-medical.net/news/20230329/Cluster-headache-and-migraine-are-stronly-linked-to-the-circadian-system.aspx (corroboration)