Rapid eye movement sleep behavior disorder is categorized as symptomatic (secondary) when the condition arises due to an underlying disorder, such as Type 1 narcolepsy.

State University of New York at Albany

Rapid eye movement sleep behavior disorder has two types, these types are:
* Isolated (idiopathic) 
* Symptomatic (secondary)


Types of Rapid Eye Movement Sleep Behavior Disorder

REM sleep behavior disorder (RBD). (2022, November 22). Cleveland clinic. Retrieved February 5, 2024, from https://my.clevelandclinic.org/health/diseases/24465-rem-sleep-behavior-disorder-rbd

REM Sleep Behavior Disorder Reference 

Rapid eye movement sleep behavior disorder is categorized as isolated (idiopathic) when the condition arises spontaneously without a primary cause. Individuals with this type of disorder develop a neurodegenerative disease, such as Lewy body dementia, multiple system atrophy, or Parkinson’s disease within ten to fifteen years of diagnosis.

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