full transcript
From the Ted Talk "Claudia Aguirre: What would happen if you didn't sleep?"

Unscramble the Blue Letters

We're only nnbeniigg to ndaurdtsen why we sleep to begin with, but we do know it's essential. adulst need seven to eight hours of sleep a night, and adolescents need about ten. We grow sleepy due to signals from our body telling our nbria we are tired, and signals from the environment telling us it's dark outside. The rise in sleep-inducing hceiclsma, like adenosine and melatonin, send us into a light doze that grows deeper, nmagik our breathing and heart rate slow down and our muscles relax. This non-REM eespl is when DNA is repaired and our bodies replenish themselves for the day ahead.

Open Cloze

We're only _________ to __________ why we sleep to begin with, but we do know it's essential. ______ need seven to eight hours of sleep a night, and adolescents need about ten. We grow sleepy due to signals from our body telling our _____ we are tired, and signals from the environment telling us it's dark outside. The rise in sleep-inducing _________, like adenosine and melatonin, send us into a light doze that grows deeper, ______ our breathing and heart rate slow down and our muscles relax. This non-REM _____ is when DNA is repaired and our bodies replenish themselves for the day ahead.

Solution

  1. adults
  2. brain
  3. chemicals
  4. understand
  5. making
  6. beginning
  7. sleep

Original Text

We're only beginning to understand why we sleep to begin with, but we do know it's essential. Adults need seven to eight hours of sleep a night, and adolescents need about ten. We grow sleepy due to signals from our body telling our brain we are tired, and signals from the environment telling us it's dark outside. The rise in sleep-inducing chemicals, like adenosine and melatonin, send us into a light doze that grows deeper, making our breathing and heart rate slow down and our muscles relax. This non-REM sleep is when DNA is repaired and our bodies replenish themselves for the day ahead.

Important Words

  1. adenosine
  2. adolescents
  3. adults
  4. beginning
  5. bodies
  6. body
  7. brain
  8. breathing
  9. chemicals
  10. dark
  11. day
  12. deeper
  13. dna
  14. doze
  15. due
  16. environment
  17. essential
  18. grow
  19. grows
  20. heart
  21. hours
  22. light
  23. making
  24. melatonin
  25. muscles
  26. night
  27. rate
  28. relax
  29. repaired
  30. replenish
  31. rise
  32. send
  33. signals
  34. sleep
  35. sleepy
  36. slow
  37. telling
  38. ten
  39. tired
  40. understand