1/ proof - evidence

2/disease - illness

3/ comfort - inconvenience

4/ enhance - boost

5/ healthy - unhealthy

6/ safe - dangerous

7/ yin - yang

8/ convert - change/adapt/switch

9/ simple - complicated

10/ increase - decrease

11/ lose weight - gain weight

12/ breathe in - exhale

13/ originate - initiate

14/ precautions - wariness

15/ alternative - option

1. evidence

2. ailment

3. distress

4. improve

5. unhealthy

6. dangerous

7. yang

8. change

9. complicated

10. decrease

1. gain weight

12. breathe out

13. create

14. protections

15. different