The Importance of Sleep

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Across
  1. 5. What plays an integral role in establishing circadian rhythm?
  2. 7. A common sleeping disorder characterized by difficulty falling asleep.
  3. 9. What stage is known for vivid dreams?
  4. 10. Blue light causes this
  5. 12. Gland in the brain produces melatonin
  6. 13. True or False: Electronic books such as a kindle do not emit blue light
  7. 14. What does the heart rate do in the N2 Stage?
Down
  1. 1. A circadian disorder that arises after long distance plane travel
  2. 2. How many minutes does the N1 stage last?
  3. 3. Hormone that facilitates sleep
  4. 4. Colors that are the worst for sleep
  5. 6. True or False: Is there a cancer risk involved with sleeping with lights on?
  6. 8. What does the body do during the N3 stage?
  7. 11. A type of curtain that blocks all light
  8. 15. Colors that are best for sleep