In adolescents and young adults, delayed sleep-wake phase disorder (DSWPD) may be associated with attention-deficit/hyperactivity disorder (ADHD) and restless legs ...

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 ...

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 ...

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 ...

If your mental health has been declining, your sleep-wake cycle may be to blame, according to a new review of literature. Taylor Leamey wrote about all things wellness for CNET, specializing in mental ...

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 ...

Problems with our sleep and internal body clock can trigger or worsen a range of psychiatric disorders, according to a new review of recent research evidence. The review, published today [19 February] ...

Sleep disorders affect an estimated 50-70 million Americans and are linked to cardiovascular disease, cognitive impairment, metabolic dysfunction, and increased accident risk. Now, sleep experts say ...

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 ...