Do people with Parkinson's who have brain fog and REM sleep behavior disorder have a higher risk of developing dementia?
Yes, both brain fog and REM sleep behavior disorder are associated with a higher risk of developing dementia in Parkinson's.
Brain Fog and Cognitive Decline
Brain fog is a common symptom that many Show Full Answer
Do people with Parkinson's who have brain fog and REM sleep behavior disorder have a higher risk of developing dementia?
Yes, both brain fog and REM sleep behavior disorder are associated with a higher risk of developing dementia in Parkinson's.
Brain Fog and Cognitive Decline
Brain fog is a common symptom that many MyParkinsonsTeam members experience. Research shows that between 18 percent and 41 percent of people with Parkinson's develop some form of cognitive decline or dementia. Up to 19 percent already have mild cognitive impairment at diagnosis, though it can take up to 20 years for this to progress to dementia.
REM Sleep Behavior Disorder as a Risk Factor
REM sleep behavior disorder is particularly significant. This condition causes people to physically act out their dreams and affects more than 50 percent of people with Parkinson's, making it one of the most common sleep disorders in PD.
Importantly, REM behavior disorder that appears early in Parkinson's disease is a risk factor for developing Parkinson's disease dementia later as the condition progresses. It has been associated with severe cognitive decline.
What This Means
If you're experiencing both symptoms, it's worth discussing with your neurologist. They may recommend regular neuropsychiatric evaluations to monitor any changes in cognitive function over time.
March 2
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