Sleep Crossword

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Across
  1. 1. Our awareness of all objects and events in the external world, as well as our sensations, mental experiences and our sense of our own existence
  2. 4. Brainwave pattern often associated with falling asleep
  3. 6. Also known as slow-wave sleep or deep sleep
  4. 8. Type of sleep strongly associated with dreaming and involving fast eye movements
  5. 9. Abbreviation used to describe a state of awareness usually associated with being awake
  6. 10. An innate timing mechanism that regulates the cycle of biological rhythms within the body
  7. 11. Abbreviation used to describe a state of awareness different to normal waking consciousness
  8. 15. Brainwave pattern associated with high alertness and intensive mental activity
  9. 16. Sleep that is owed and needs to be made up
  10. 18. Older adults 65+ get this type of sleep the least of any age group
  11. 22. A device that detects, amplifies and records electrical activity produced by brain neurons near the scalp
  12. 24. The master biological clock that regulates the timing and activity of the sleep–wake cycle, as well as all other peripheral clocks involved with circadian rhythms
Down
  1. 2. The hormonally-induced shift of the body clock in adolescence (making adolescents sleepier 1-2 hours later)
  2. 3. A device that detects, amplifies and records electrical activity in voluntary muscles such as in the jaw, arms and legs
  3. 5. Brainwave activity associated with deeper sleep or degrees of unconsciousness
  4. 7. The lightest of all stages of sleep that is usually entered first
  5. 11. Brainwave pattern associated with feeling awake but relaxed and becoming internally focused
  6. 12. A type of biological rhythm that changes as part of a 24-hour cycle
  7. 13. A device that detects, amplifies and records electrical activity produced by muscles that control eye movements
  8. 14. A stage of sleep associated with increasing levels of drowsiness and increased muscle relaxation
  9. 17. The hormone that is involved in the initiation of sleep and in the regulation of the sleep–wake cycle
  10. 19. A biological rhythm that involves changes that occur as part of a cycle shorter than 24 hours
  11. 20. A regularly occurring natural ASC that results in a partial or total suspension of conscious awareness
  12. 21. Age group that gets the most REM sleep
  13. 23. Abbreviation for the three stages of sleep not associated with fast eye movements