Sleep & Dreams

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Across
  1. 4. Dream type under control of the dreamer
  2. 5. This rhythm repeats every 24 hours
  3. 6. Condition that increases risk of daytime drowsiness
  4. 7. Clinical term for sleepwalking
  5. 11. Startling motion one may make while falling asleep
  6. 16. Leads to accumulation of sleep debt when pulled
  7. 17. Hormone secreted during sleep
  8. 20. Condition that can be treated with a breathing machine
Down
  1. 1. Common condition causing sleepers to talk
  2. 2. Measured by an EEG and indicates deep sleep
  3. 3. Surface-level content of dreams, says Freud
  4. 8. Oberservers may be distressed, but sleepers will not remember this event
  5. 9. Shift between REM and non-REM sleep over the course of a night
  6. 10. An emotionally disturbing dream
  7. 12. Type of content that reveals meaning of dreams, says Freud
  8. 13. Theory that says sleep is for recovering from activities during the day
  9. 14. Consequence of moving through timezones
  10. 15. Condition diagnosed based on sleep difficulties for a period of 3 weeks or greater
  11. 18. This gland is said to regulate your internal clock
  12. 19. Dreams occur in this stage of sleep