220404 - Sleep and Light

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Across
  1. 3. The red bodily fluid.
  2. 5. Not natural; made by men.
  3. 7. If a thing is _____, you don't want to forget it.
  4. 10. If you have it, you need to see the doctor.
  5. 12. People with _____ have high blood sugar level.
Down
  1. 1. If a question is _____, you don't know how to do it.
  2. 2. If you are too _____, you cannot sit quietly.
  3. 3. The important organ that lives in everyone's head.
  4. 4. The opposite of indoor
  5. 6. You need it to wake up on time.
  6. 8. Things that a doctor studies.
  7. 9. The amount or number of something.
  8. 11. If a person is an expert on a subject, he knows a lot of things on that.