This article on last week’s Live Science (livescience.com) is about REM sleep behavior disorder (RBD), which is acting out dreams. This symptom in common in Parkinson’s Disease, Dementia with Lewy Bodies, and Multiple System Atrophy. The vast majority of those with RBD have one of these three disorders and often one of these neurological disorders comes to light years (or decades) after the first signs of RBD.
Here’s a link to the full article:
http://www.livescience.com/59300-brain-cells-linked-to-dreaming-found.html
Live Science
Health
Dreams and Brain Disease: REM Sleep Cells Linked to Disorders
By Tracy Staedter, Live Science Contributor
May 30, 2017 07:06pm ET