People with REM sleep behavior disorder, a condition caused by the brain's failure to immobilize a person's muscles while they're dreaming, have an estimated 52 percent risk of developing one of those neurological diseases within a dozen years, according to a recent study. Among people without REM sleep behavior disorder, that risk is about 5 percent, according to study author Ron Postuma, an associate researcher in neurology at the Sleep Disorders Center at Sacre-Coeur Hospital in Montreal.
(source: sciam.com)
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