According to one review, "placebos can reduce pain, activate the immune system ... we should expect to see cultural variations in placebo and nocebo effects—and we do. A review of past ...

These variations in pain sensitivity are stable over time ... Molecular biological, cell culture and animal behavior experiments were also conducted to demonstrate the relationship between ...

The experience of lower back pain and the experience of guilty ... The DSM-IV-TR dedicated a six-page appendix to cultural variation, in a 900 page book, concentrating on conditions that American ...