4 doctors weighed in:
What's the cause of delayed sleep phase disorder?
4 doctors weighed in

Dr. Paul Schwartz
Psychiatry
3 doctors agree
In brief: Habits, light, genes
Delayed sleep phase syndrome is a partly genetic condition whereby one's sleep-wake schedule is greatly delayed with respect to the timing of one's internal biological clock.
Causes include 1) habitually intentionally staying up late (e.g. To play video games), 2) exposure to too much light before bedtime, 3) exposure to too little light upon awakening, 4) genetic predisposition, 5) certain meds.

In brief: Habits, light, genes
Delayed sleep phase syndrome is a partly genetic condition whereby one's sleep-wake schedule is greatly delayed with respect to the timing of one's internal biological clock.
Causes include 1) habitually intentionally staying up late (e.g. To play video games), 2) exposure to too much light before bedtime, 3) exposure to too little light upon awakening, 4) genetic predisposition, 5) certain meds.
Dr. Paul Schwartz
Dr. Paul Schwartz
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