2.3 Are you getting enough sleep?

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Across
  1. 6. make known; uncover
  2. 7. easily affected or influenced
  3. 12. shocking
  4. 13. feeling of worry or fear
Down
  1. 1. a system that protects your body
  2. 2. tired
  3. 3. give notice beforehand
  4. 4. looks
  5. 5. feeling sad
  6. 8. relax
  7. 9. support or encourage
  8. 10. get rid of
  9. 11. a greater number