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Circadian rhythm sleep-wake disorders are a group of conditions in which the timing of an individual’s sleep is disrupted. Circadian rhythms are often referred to as the body’s internal clock or our ...

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 ...

DEAR ABBY: I am acquainted with a single mother of a 4-year-old daughter. The mother is depressed and suffers from a circadian rhythm disorder. They don’t go to bed until 4 to 6 in the morning and ...

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 ...

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 ...

Woke up in a new time zone, but your brain stayed home? You’re not alone. Each year, more than 100 million people experience jet lag — a temporary sleep disorder that occurs when rapid long-distance ...

A person’s symptoms may vary depending on the sleep disorder affecting them. People may have difficulty falling asleep or experience low quality, disrupted sleep. The amount of sleep someone needs ...