13. Poor Sleep Quality
Circadian rhythm disruption is a leading cause of poor sleep quality, manifesting as insomnia, frequent awakenings, and non-restorative sleep.
Polysomnography studies consistently show that individuals with irregular rhythms spend less time in deep, restorative stages of sleep and experience more nighttime disruptions.
This fragmented sleep leaves people feeling unrefreshed and fatigued during the day.
Consistent circadian alignment is essential for achieving restorative sleep, which underpins both physical and mental health.