It's known that stress gives rise to disease. It's also known that many diseases, especially stress-related diseases, can be cured by placebos - pills that have no medicinal effect, but people think they do, and so they do.

It's known that stress gives rise to disease. It's also known that many diseases, especially stress-related diseases, can be cured by placebos - pills that have no medicinal effect, but people think they do, and so they do.