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Published on: 11/20/2025
Why do people act out their dreams in REM Sleep Behavior Disorder (RBD)?
In REM Sleep Behavior Disorder (RBD), people act out their dreams because the brain fails to keep the body still during REM sleep, allowing dream movements to occur.
Wondering why RBD causes dream actions?
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REM Sleep Behavior Disorder (RBD) happens when the brain does not properly paralyze the body during REM sleep, which is the stage when we dream. Normally, our bodies stay still while we dream, but in RBD, this safety feature is missing.
Why Does This Happen?
- Brain Signals: In people with RBD, the brain signals that usually keep muscles relaxed during dreaming do not work correctly.
- Dream Enactment: As a result, people can move and act out what they are dreaming about, which can sometimes be dangerous.
What Can You Do?
- Medical Attention: It is important to see a doctor if you suspect you have RBD because it might be linked to other brain conditions.
- Safety Measures: Making the bedroom safe, like removing sharp objects, can help prevent injuries.
For more information on mental health concerns, please visit 988lifeline.org.
(References)
- Blumberg MS, & Plumeau AM. (2016). A new view of "dream enactment" in REM sleep behavior .... Sleep medicine reviews, 26802823.
- Postuma RB, Gagnon JF, & Montplaisir JY. (2012). REM sleep behavior disorder: from dreams to .... Neurobiology of disease, 22019718.
- Dauvilliers Y, Schenck CH, Postuma RB, Iranzo A, Luppi PH, Plazzi G, et al. (2018). REM sleep behaviour disorder. Nature reviews. Disease primers, 30166532.
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