How often do you ~~

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Across
  1. 3. to rest your body by closing your eyes
  2. 5. 24 hours
  3. 6. improve your health or physical fitness
  4. 8. to take food into your mouth and swallow it
  5. 9. one time only
  6. 10. an act of cleaning something by using water
  7. 13. a part of the inside of a building
  8. 16. to a greater or extent
  9. 17. not sick or injured, well
  10. 18. free from dirt
  11. 19. to take a liquid into your mouth and swallow it
Down
  1. 1. to clean or smooth with it
  2. 2. the first meal of the day
  3. 4. helpful result or effect
  4. 7. white objects inside the mouth that are used for biting
  5. 11. sport through water by moving your arms and legs
  6. 12. 7 days in a week
  7. 14. many times
  8. 15. a period of seven days