This natural sleep-wake cycle, which repeats every 24 hours, is known as the circadian rhythm.It relies on environmental cues like light and dark, meal timing, and physical activity.

Circadian rhythm disorders are conditions that disrupt this natural cycle. Several types of circadian rhythm disorders exist, and they can affect how you sleep as well as how you function when you ...

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 ...

Free-running sleep disorder, also known as non-24 sleep disorder, occurs when an individual experiences sleepiness and goes to sleep later each consecutive day, as their circadian rhythm is longer ...

Circadian rhythm disorders can make everyday life challenging, as they disrupt your sleep and affect how well you function during the day. However, with proper treatment and lifestyle changes ...

If people with ASWPD are the morning larks, their counterparts are those with DSWPD who are night owls. This is one of the most common circadian rhythm sleep disorders people encounter, especially ...

WebMD explains the causes, symptoms, diagnosis, and treatment of non-24-hour sleep-wake-disorder (Non-24), a condition that disrupts your ability to go to sleep at night and stay awake during the day.

Imbalances in circadian rhythms can cause serious trouble, says Susan Harding, M.D., director of UAB’s Sleep/Wake Disorders Center, which treats several circadian sleep disorders. The most common are ...

Circadian rhythm disorders occur when your body's internal clock no longer matches your environment. They're also referred to as sleep-wake cycle disorders. Examples include jet lag disorder and ...

Circadian rhythm sleep disorders are a family of sleep disorders affecting the timing of sleep. People with circadian rhythm sleep disorders are unable to sleep and wake at the times required for ...