Is your internal clock keeping you awake at night? Delayed sleep phase syndrome may be to blame, and it's more common than you think. Arielle Burton was an associate content manager on CNET's ...

June 14 -- FRIDAY, June 13 (HealthDay News) -- Having delayed sleep phase syndrome (DSPS) appears to be linked to irregular menstrual cycles and increased premenstrual symptoms in women, according to ...

Kristin was late to school again, as she had been so many times before. Since she didn't go to bed until 3:00 a.m., she wasn't able to get out of bed at 6:30 a.m. for school. This time she had to meet ...

We often read about, or may know someone—often a high school or college student—who stays up way too late and then has a very hard time getting up in the morning. When bedtimes and wake times both get ...

There are definitely “morning people” and “night owls” – but that’s usually a symptom of habits and sleep patterns that have been developed, not a legitimate syndrome. But it turns out there is some ...

Advanced sleep phase disorder is a rare condition that causes your natural circadian rhythm, or sleep-wake cycle, to occur earlier than typical. As humans, our sleep-wake cycle— also known as our ...

Your DNA has a big impact on your sleep. It determines your circadian rhythm and even predisposes you to some sleep disorders. Taylor Leamey wrote about all things wellness for CNET, specializing in ...