Alzheimer’s risk rises when amount of deep sleep falls, study suggests

Alzheimer’s risk rises when amount of deep sleep falls, study suggests 
CNN Health; by Sandee LaMotte; 4/8/25 
Need another reason to prioritize your sleep? Not spending enough time in the two deep stages of sleep — slow-wave and rapid eye movement, or REM, sleep — may hasten the deterioration of parts of the brain associated with Alzheimer’s disease, a new study found. Deficits in slow-wave and REM sleep appear to shrink parts of the brain known to be early indicators of cognitive deterioration and Alzheimer’s disease, said lead study author Gawon Cho, a postdoctoral associate in internal medicine at the Yale School of Medicine in New Haven, Connecticut. [Continue reading ...]