Latin: Somnus (god)
2. Having two distinct phases of sleep.
2. Sleep which is induced by passing an electric current through the brain between electrodes placed om the temples.
3. Sleep which is produced by the passage of mild electrical impulses through parts of the brain.
This technique has been used experimentally in treating insomnia and mental illness.
2. A recurring sleep state during which rapid eye movements do not occur and dreaming does not occur.
This kind of sleep accounts for about 75% of normal sleep time.
2. A general lack of a necessary amount of sleep.
3. A condition of forcibly, or by a sleep disorder, of being kept awake, to the point of having a noticeably lower alertness in mental or physical responses.
4. The condition of being robbed of sleep (by staying up too long watching TV, or playing computer games, etc.), in real life or in an experiment.
This may occur as a result of sleep disorders, active choice, or deliberate inducement; such as, with interrogation or for torture.
2. A general lack of a necessary amount of sleep: Sleep deprivations may occur as a result of sleep disorders, an active choice, or a deliberate inducement; such as, during an interrogation in order to force that person to give up information or to make a confession of something.
Central sleep apnea is less common than obstructive sleep apnea and can require mechanical ventilation.
The air cannot flow through the nose or mouth, although efforts to breathe are made by the person. The basic problem may be blockage in the mouth or nose.
Sleep apnea that is associated with air passage obstruction may require losing excessive weight, avoiding alcohol and sedatives, sleeping on one side, medications to relieve nasal congestion, a breathing device, or some kind of surgical procedure.
Terms applicable to sleeping for a greater understanding of the sleep process.
2. Sleep apnea is classified as obstructive or central.
Medical treatment depends on the type of sleep apnea present
- Sleep apnea which is associated with air passage obstruction may require losing excessive weight, avoiding alcohol and sedatives, sleeping on one side, medications to relieve nasal congestion, a breathing device, or surgical procedures.
- Central sleep apnea is uncommon and caused by problems in the brain that impair the signals to breathe and can require mechanical ventilation.
The most common sleep disorder is snoring, although it is usually not medically significant.
Insomnia, sleep apnea, restless legs syndrome, and sleepwalking are also sleep disorders.
Many large medical centers have diagnostic and treatment facilities dedicated to diagnosing and treating sleep disorders.