Myth 1: Sleep is a time when your body and brain shut down for rest and relaxation. No evidence shows that any major organ (including the brain) or regulatory system in the body shuts down during sleep. Some physiological processes actually become more active while you sleep. For example, secretion of certain hormones is boosted,…
Periodic Limb Movement Disorder
From Wikipedia, the free encyclopedia Periodic limb movement disorder (PLMD), previously known as nocturnal myoclonus, is a sleep disorder where the patient moves limbs involuntarily during sleep, and has symptoms or problems related to the movement. PLMD should not be confused with restless legs syndrome (RLS). RLS occurs while awake as well as when asleep,…
Rhythmic Movement Disorder
From Wikipedia, the free encyclopedia Rhythmic Movement Disorder (or RMD) is a neurological disorder characterized by involuntary (however may sometimes be voluntary), repetitive movements of large muscle groups immediately before and during sleep often involving the head and neck. It was independently described first in 1905 by Zappert as jactatio capitis nocturna and by Cruchet…
Sleep Leg Cramps
From Wikipedia, the free encyclopedia Nocturnal leg cramps are involuntary muscle contractions that occur in the calves, soles of the feet, or other muscles in the body during the night or (less commonly) while resting. The duration of nocturnal leg cramps is variable, with cramps lasting anywhere from a few seconds to several minutes. Muscle…
Restless legs syndrome
From Wikipedia, the free encyclopedia Restless legs syndrome (RLS) is a disorder that causes a strong urge to move one’s legs.[2] There is often an unpleasant feeling in the legs that improves somewhat with moving them.[2] Occasionally the arms may also be affected.[2] The feelings generally happen when at rest and therefore can make it…
Sleep-related Eating
From Wikipedia, the free encyclopedia Nocturnal sleep-related eating disorder (NSRED), also known as sleep-related eating disorder (SRED), sleep eating, or somnambulistic eating, is a combination of a parasomnia and an eating disorder. It is described as being in a specific category within somnambulism or a state of sleepwalking that includes behaviors connected to a person’s…
Nightmare
From Wikipedia, the free encyclopedia A nightmare, also called a bad dream,[1] is an unpleasant dream that can cause a strong emotional response from the mind, typically fear but also despair, anxiety and great sadness. The dream may contain situations of discomfort, psychological or physical terror or panic. Sufferers often awaken in a state of…
Sleepwalking
From Wikipedia, the free encyclopedia Sleepwalking, also known as somnambulism or noctambulism, is a phenomenon of combined sleep and wakefulness.[1] It is classified as a sleep disorder belonging to the parasomnia family.[2] It occurs during slow wave sleep stage, in a state of low consciousness, with performance of activities that are usually performed during a…
Rapid Eye Movement Sleep Behavior Disorder
From Wikipedia, the free encyclopedia Rapid eye movement sleep behavior disorder (RBD) is a sleep disorder (more specifically a parasomnia) that involves abnormal behavior during the sleep phase with rapid eye movement (REM) sleep. It was first described in 1986. The major and arguably only abnormal feature of RBD is loss of muscle atonia (i.e.,…
Advanced Sleep Phase Disorder
From Wikipedia, the free encyclopedia Advanced sleep phase disorder (ASPD), also known as the advanced sleep-phase type (ASPT) of circadian rhythm sleep disorder or advanced sleep phase syndrome (ASPS), is a condition in which patients feel very sleepy and go to bed early in the evening (e.g. 6:00–8:00 p.m.) and wake up very early in the…