Understanding Addiction

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Across
  1. 2. comfortable in crowds
  2. 4. exercise restraint or direction over
  3. 7. unable to say no;driven to engage
  4. 8. to suppose;guess
  5. 10. poisonous
  6. 11. attachment to something one can't do without
  7. 12. newbie
  8. 16. decreased effect after repeated use
  9. 18. stimulation of pleasurable feelings
  10. 19. fox
  11. 20. red again
Down
  1. 1. untreated, the disease gets worse
  2. 3. being the only one
  3. 5. red no more
  4. 6. completed first step
  5. 9. predictive patterns
  6. 13. person not thing
  7. 14. very extreme
  8. 15. fatal
  9. 17. strong desire;obsessive