Sleep patterns change with age, anxiety levels and many other factors. Normally, younger people have more concentrated periods of deep sleep and older people have more periods of REM sleep.
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- Sleep disorders
Update Date:
August 3, 2007
David A. Kaufman, M.D., Assistant Professor, Division of Pulmonary, Critical Care & Sleep Medicine, Mount Sinai School of Medicine, New York, NY. Review provided by VeriMed Healthcare Network.