Pick out words from the text which mean the same as the following.
1. The result of a situation.
2. Physical illness which occurs because the patient is worried or anxious.
3. Prevent from proceeding easily.
4. Gradually destroyed.
5. Willing to change and adapt.
6. Long existence of something.
7. Forcing one's views on others.
8. Enter by force
9. Difficult to unravel or smooth out.