The Conversation A little-understood sleep disorder affects millions and has clear links to dementia – 4 questions answered Anelyssa D'Abreu, UVA Neurology, answers four key questions on REM sleep behavior disorder and its possible link to dementia. https://theconversation.com/a-little-understood-sleep-disorder-affects-millions-and-has-clear-links-to-dementia-4-questions-answered-201527