What is a placebo and why is it used?

Related questions

1. Does placebo effect work if you know?
2. Can science explain the placebo effect?
3. How powerful is the placebo effect?
4. Is a placebo fake if it works?
5. Can placebos work?
6. Is homeopathy placebo effect?
7. Is homeopathy banned in UK?
8. What are the side effects of Nux vomica?
9. Does the NHS fund homeopathy?
10. Is homeopathy allowed in Germany?

Tags

1. #treatments
2. #physical
3. #clinical
4. #placebos
5. #experimental
6. #devices
7. #treatment
8. #better
9. #overall
10. #effect
11. #trials
12. #control
13. #acupuncture
14. #often
15. #under
16. #researchers
17. #study
18. #evaluate
19. #inactive