Circadian Rhythm Disorder or Insomnia? How to Tell Apart
A circadian rhythm disorder is a problem with the timing of sleep rather than
the capacity for it. This guide covers how delayed and advanced sleep-wake
phase disorders differ from insomnia disorder, why the two so often run
together, how light and melatonin timing works, and how assessment happens in
British Columbia.
Graeme Thompson, RCC
August 12, 2026
