Cluster headaches were found to be more likely to occur in spring and fall, with attacks generally happening between late night and early morning.
Sources
- Migraine and Cluster Headaches are Linked to the Body's Internal ... (healthline.com)
- https://www.aan.com/PressRoom/Home/PressRelease/5067 (aan.com)
- https://my.clevelandclinic.org/health/diseases/5003-cluster-headaches (my.clevelandclinic.org)
- https://www.ncbi.nlm.nih.gov/books/NBK544241/ (ncbi.nlm.nih.gov)
- https://www.urmc.rochester.edu/encyclopedia/content?contenttypeid=56&contentid=723 (urmc.rochester.edu)
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