Why do placebos work?

Related questions

1. Why should placebos be used?
2. How does a placebo work?
3. How strong is the placebo effect?
4. Can the placebo effect cure cancer?
5. What causes placebo effect?
6. Is Ibuprofen a placebo?
7. Does a placebo work if you know?
8. How long does a placebo effect last?
9. Does the placebo effect wear off?
10. What is the opposite of placebo?

Tags

1. #lower
2. #placebos
3. #treatment
4. #tumor
5. #shrink
6. #procedure
7. #effect
8. #cholesterol
9. #thinking
10. #perception
11. #brain
12. #believing
13. #positive
14. #better
15. #placebo
16. #symptoms
17. #modulated
18. #kaptchuk
19. #instead