Sleep and Sleep Disorders

Narcolepsy and Cataplexy

Narcolepsy is a sleep disorder. The principal symptoms are excessive daytime sleepiness (EDS), cataplexy (loss of muscle tone),…    

Sleep Disorders in Dementia

Definition and Prevalence
Dementia is highly associated with sleep disruption. Sleep-wake patterns in dementia are…    

REM Sleep Behavior Disorder

Definition and Prevalence
REM sleep behavior disorder (RBD) is a disorder in which the muscle…    

Periodic Limb Movements in Sleep

Definition and Prevalence
Periodic limb movements in sleep (PLMS) is a disorder of unknown etiology,…    

Sleep Disordered Breathing

Definition and Prevalence
Sleep disordered breathing (SDB) or sleep apnea is characterized by complete or…    

Sleep Disordered Breathing Treatment and Management

Treatment and Management
Weight loss in obese patients with SDB can significantly reduce or eliminate…    

Specific Clinical Patterns in Aging

Because the prevalence of several medical and psychiatric conditions that affect sleep, as well as the prevalence of…    

Physiologic Sleep and Its Measurement

In the 1950s, scientists discovered that sleep is an active process, not, as formerly believed, a passive state…