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  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-932-sleep-sequence-014.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-925-sleep-sequence-007.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-943-sleep-sequence-025.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-941-sleep-sequence-023.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-940-sleep-sequence-022.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-939-sleep-sequence-021.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-938-sleep-sequence-020.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-937-sleep-sequence-019.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-931-sleep-sequence-013.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-930-sleep-sequence-012.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-929-sleep-sequence-011.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-924-sleep-sequence-006.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-919-sleep-sequence-001.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-942-sleep-sequence-024.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-936-sleep-sequence-018.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-935-sleep-sequence-017.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-933-sleep-sequence-015.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-928-sleep-sequence-010.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-927-sleep-sequence-009.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-923-sleep-sequence-005.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-922-sleep-sequence-004.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-921-sleep-sequence-003.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-920-sleep-sequence-002.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-934-sleep-sequence-016.jpg
  • Night's sleep sequence of 4 or 5 cycles of REM & non-REM sleep.  Everyone makes at least 8-12 posture shifts a night.
    scf4327-926-sleep-sequence-008.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    Sleep 0013 Sleep Study.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    Sleep 0014 Sleep Study.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    Sleep 0012a Sleep Study.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    Sleep 0012 Sleep Study.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    Sleep 0011a Sleep Study.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    scf4384-004.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    scf4327-803_Sleep 0012 Sleep Study.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    scf4327-804_Sleep 0013 Sleep Study.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    scf4327-802_Sleep 0011a Sleep Study.jpg
  • By adjusting when a patient experiences light, a researcher can adjust their biological time clock or circadian rhythm and cure jet lag.
    Sleep 0010 Sleep Study.jpg
  • By adjusting when a patient experiences light, a researcher can adjust their biological time clock or circadian rhythm and cure jet lag.  Dr. Daniel f. Kripke of the University of San Diego uses light to cure depression.
    Sleep 0009 Sleep Study.jpg
  • By adjusting when a patient experiences light, a researcher can adjust their biological time clock or circadian rhythm and cure jet lag.
    scf4327-800_Sleep 0010 Sleep Study.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    fct4384-005_Sleep 0014 Sleep Study.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    Sleep 0011 Sleep Study.jpg
  • By adjusting when a patient experiences light, researcher Dr. Charles A. Czeisler associate Professor of medicine at Harvard can adjust their biological time clock or circadian rhythm and cure jet lag.
    scf4384-004_Sleep 0012a Sleep Study.jpg
  • By adjusting when a patient experiences light, a researcher can adjust their biological time clock or circadian rhythm and cure jet lag.  Dr. Daniel f. Kripke of the University of San Diego uses light to cure depression.
    scf4384-003_scf4399-143_Sleep 0009 S...jpg
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