Consciousness Crossword

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Across
  1. 2. the most common when dreaming
  2. 6. performing complex behavior while in deep sleep
  3. 7. vivid dreams that can be upsetting
  4. 13. condition of altered consciousness
  5. 14. most people believe this sleep theory
  6. 16. we sleep to conserve energy theory
  7. 17. occurs when breathing repeatedly stops during sleep
  8. 18. brain activity begins to pick up and eyes rapidly move
Down
  1. 1. system that tracks the brain's activity
  2. 3. hard to fall or stay asleep
  3. 4. also known as deep sleep
  4. 5. people will show panic and terror while sleeping
  5. 8. a state of awareness
  6. 9. exhaustion and sudden attacks of sleep
  7. 10. the dozing off stage of sleep
  8. 11. electrical impulses in the brain
  9. 12. mental activity that happens during sleep
  10. 15. body enters a more subdued state