The impact of REM-sleep behavior disorder on people with Parkinson’s disease and their partners https://www.nature.com/articles/s41531-025-00986-1 REM sleep behavior disorder affects both Parkinson’s patients, partners https://parkinsonsnewstoday.com/news/both-parkinsons-patients-partners-affected-rem-sleep-behavior-disorder/ Sleep disorders increase dementia risk https://www.bbc.com/news/articles/ckg4lgrnmnjo