full transcript
"From the Ted Talk by Russell Foster: Why do we sleep?"

Unscramble the Blue Letters

OK. So we've had three eaxpintloans for why we might sleep, and I think the important thing to realize is that the diteals will vary, and it's probable we seelp for muptille different reasons. But sleep is not an indulgence. It's not some sort of thing that we can take on board rather casually. I think that sleep was once likened to an upgrade from economy to business class, you know, the equivalent of. It's not even an upgrade from economy to first class. The critical thing to realize is that if you don't sleep, you don't fly. eltnlasesiy, you never get there. And what's extraordinary about much of our society these days is that we are desperately sleep-deprived.

Open Cloze

OK. So we've had three ____________ for why we might sleep, and I think the important thing to realize is that the _______ will vary, and it's probable we _____ for ________ different reasons. But sleep is not an indulgence. It's not some sort of thing that we can take on board rather casually. I think that sleep was once likened to an upgrade from economy to business class, you know, the equivalent of. It's not even an upgrade from economy to first class. The critical thing to realize is that if you don't sleep, you don't fly. ___________, you never get there. And what's extraordinary about much of our society these days is that we are desperately sleep-deprived.

Solution

  1. sleep
  2. details
  3. essentially
  4. explanations
  5. multiple

Original Text

OK. So we've had three explanations for why we might sleep, and I think the important thing to realize is that the details will vary, and it's probable we sleep for multiple different reasons. But sleep is not an indulgence. It's not some sort of thing that we can take on board rather casually. I think that sleep was once likened to an upgrade from economy to business class, you know, the equivalent of. It's not even an upgrade from economy to first class. The critical thing to realize is that if you don't sleep, you don't fly. Essentially, you never get there. And what's extraordinary about much of our society these days is that we are desperately sleep-deprived.

ngrams of length 2

collocation frequency
sleep disruption 8
mental illness 8
sleep loss 4
dark cycle 3
memory consolidation 3
falling asleep 3
mental health 3
normal sleep 3
essentially sleep 3
light exposure 3
biological clock 3
alarm clock 3
shift work 3
sleep deprived 3
light dark 3

ngrams of length 3

collocation frequency
light dark cycle 3

Important Words

  1. board
  2. business
  3. casually
  4. class
  5. critical
  6. days
  7. desperately
  8. details
  9. economy
  10. equivalent
  11. essentially
  12. explanations
  13. extraordinary
  14. fly
  15. important
  16. indulgence
  17. likened
  18. multiple
  19. probable
  20. realize
  21. reasons
  22. sleep
  23. society
  24. sort
  25. upgrade
  26. vary