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|    Poor Sleep Tied to Brain Changes of Deme    |
|    25 Feb 15 20:38:32    |
      From: hound23x@gmail.com              Poor Sleep Tied to Brain Changes of Dementia              By NICHOLAS BAKALAR       DECEMBER 15, 2014       Poor sleep in older adults may be linked to brain changes associated with       dementia, a new study has found.              Researchers studied 167 men who underwent sleep tests in 1999 and died by       2010. The study, in Neurology, recorded sleep duration, periods of waking up       and episodes of apnea, and used pulse oximetry to measure oxygen saturation of       their blood.              On autopsy, they found that those in the highest one-quarter for duration of       sleep at oxygen saturation of less than 95 percent were almost four times as       likely to have higher levels microinfarcts, small areas of dead tissue caused       by deprivation of        blood supply, as those in the lowest one-quarter.              Compared with those in the lowest 25 percent for duration of slow-wave (deep)       sleep, those in the highest one-quarter were about a third as likely to have       moderate or high levels of generalized brain atrophy.                     "Prior studies have shown an association between certain types of sleep       disturbance and dementia," said the lead author, Dr. Rebecca P. Gelber, an       epidemiologist with the Veterans Administration in Hawaii. "These lesions may       help explain the association."                     http://mobile.nytimes.com/blogs/well/2014/12/15/poor-sleep-tied-       o-brain-changes-of-dementia/?referrer=              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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