sleep disorder
Learn about this topic in these articles:
chronic fatigue syndrome
- In myalgic encephalomyelitis/chronic fatigue syndrome: Suspected causes, diagnosis, and treatment
pain, headache, sleep disorders, confusion, and memory loss. Symptoms are often similar in appearance to those of other conditions and tend to come and go or may fluctuate in severity over time. Thus, diagnosis of ME/CFS further requires all other illnesses or medical conditions associated with the…
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nervous system disorders
- In nervous system disease: Disorders of sleep
The raphe nuclei of the pons and the locus ceruleus, which mediate sleep, are situated in the brainstem. Sleep consists of two phases: rapid eye movement (REM) sleep and non-REM, or slow-wave, sleep. During non-REM sleep an individual progresses from drowsiness through…
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sleep pathology
- In sleep: Pathological aspects
The pathologies of sleep can be divided into six major categories: insomnia (difficulty initiating or maintaining sleep); sleep-related breathing disorders (such as sleep apnea); hypersomnia of central origin (such as narcolepsy); circadian rhythm disorders (such as jet lag);
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treatment with sedative-hypnotic drugs
- In sedative-hypnotic drug
…(sedative effect) or to induce sleep (hypnotic effect). Most such drugs exert a quieting or calming effect at low doses and a sleep-inducing effect in larger doses. Sedative-hypnotic drugs tend to depress the central nervous system. Since these actions can be obtained with other drugs, such as opiates, the distinctive…
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