From New York Magazine:
...MOREIf you have ever felt markedly stupider after a long period of sleep deprivation, a new study may hint at a reason. Years of sleep difficulties seem to be associated with a brain that shrinks in size over time, according to a new paper published online today in Neurology.
Via the press release:
Researchers examined the link between sleep difficulties, such as having trouble falling asleep or staying asleep at night, and brain volume. All participants underwent two MRI brain scans, an average of 3.5 years apart, before completing a questionnaire about their sleep habits. ... The study found that sleep difficulties were linked with a more rapid decline in brain volume over the course of the study in widespread brain regions, including within frontal, temporal and parietal areas....
