Delayed Sleep Phase Syndrome

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Overview


Delayed sleep phase syndrome (DSPS), also called phase lag syndrome, is a circadian rhythm sleep disorder. However, unlike jet lag and the effects of shift work, delayed sleep phase syndrome is a persistent condition. In clinical settings, DSPS is one of the most common complications of sleep-wake patterns.



Delayed sleep phase syndrome results when the patient's internal biological clock does not match his or her external environment (called desynchronization). Unlike ...Read the full article