Nightmares in middle age are linked to a significantly increased risk for subsequent dementia, new research suggested. However, one expert is skeptical that this is the case.
HELSINKI —
The current study furthers the previous research by analyzing a subset of study participants who had genetic data available that was based on blood tests, saliva samples, and family history to determine if these had any impact on the previous findings. Future studies are needed to determine whether treating distressing dreams could help slow cognitive decline and/or prevent dementia, he said.
Finally, said Otaiku, there are data on diagnosed sleep disorders from one of his studies, which showed that even when all participants with a diagnosed sleep disorder were excluded, the relationship between nightmares and dementia risk remained robust.Otaiku noted his team also adjusted for neuropsychiatric disorders such as anxiety, depression, and stress, and still the link between nightmares and dementia risk remained robust.
"It is well-known that REM sleep behavior disorder may precede dementia by many years. One of the key symptoms of REM sleep behavior disorder are nightmares, or 'distressing dreams'…and this is why we always ask about sleep and nightmares during consultations in the memory clinic," Engelborghs added.
Alzheimer Disease Sleep Disturbance Abnormal Sleep Pattern Sleep Disorder Somnipathy Dementia Lewy Body Dementia Dementia With Lewy Bodies Nightmares Sleep Behavior Problem Behavior Disorder Behavioral Disturbance Rapid Eye Movement REM - Rapid Eye Movement Genomics Genomic Medicine Genetics Depression Eye
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