Cryogenic

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Across
  1. 3. Your body naturally prevents you catching a disease
  2. 6. Your disease lasts for a long time
  3. 7. The time from birth until death
  4. 8. In a small amount, only a little
Down
  1. 1. To set up your home somewhere
  2. 2. Move to a different place
  3. 4. You must do it, it is a rule
  4. 5. Many people get the same illness the same time