In a study of Gulf War veterans, disrupted sleep patterns were associated with a lower brain volume, suggesting that effective treatment for insomnia might improve some cognitive functioning. “People discount the importance of sleep [to cognitive functioning],” researcher Linda L. Chao told Reuters. “So many things seem so much more important than a few extra hours of sleep a night. The study suggests we shouldn’t discount sleep importance.” Chao, a scientist with the University of California at San Francisco, published a study this week in the journal Sleep after collaborating with researchers from the Department of Veterans Affairs.
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