Does oxygen level drop during sleep?

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Tags

  1. #oxygen
  2. #reduced
  3. #lower
  4. #breathing
  5. #below
  6. #mildly
  7. #blood
  8. #during
  9. #waking
  10. #saturation
  11. #everyone
  12. #level
  13. #alveoli
  14. #percent
  15. #levels
  16. #about
  17. #greater
  18. #sleep
  19. #unlikely