Delayed sleep phase syndrome (DSPS) is a most prevalent circadian rhythm sleep disorder and is marked by a delay in the timing of sleep episode compared to desired or necessary sleeping and wakeup ...

Late nights, irregular meals, travel, screen time and relaxed routines often leave both adults and children struggling to ...

Non-24-hour sleep-wake disorder (N24SWD) occurs when your sleep-wake cycle gradually shifts out of sync with the 24-hour day. It affects about half of blind people, but it can also affect those with ...

Think afternoon sunlight helps teens wind down at night? New research shows it can actually disrupt their melatonin and delay sleep, suggesting school schedules, not just screen time, may be the key ...