“…Published studies on the chronobiology of migraine have demonstrated a lack of consensus on when migraines most often occur or if a pattern to migraine attacks can even be established. However, a rhythmic pattern has been found in several studies 1‐44 . In addition, migraine attacks appear to occur most frequently in the early morning (morning migraines) (eg, 6 am to 12 pm ) or upon wakening (waking migraines), which can occur at any time of day or 1,2,4 night 1,2,4 depending on a subject's sleep/wake patterns.…”