As I suggested in this post Was Angelina Jolie Medically Hexed, doctors have the power to activate nocebo effects in patients. (mindbodygreen.com)
The study looks at data on 26 side effects from a trial of approximately 10,000 patients and suggests that cases of muscle pain and weakness are unlikely to be directly caused by statins, but may instead be due to the so - called nocebo effect, where the expectation of side effects can make patients more likely to report them. (sciencedaily.com)
The article also notes that psychosocial factors that promote therapeutic placebo effects have the potential to cause adverse consequences, known as nocebo effects. (sciencedaily.com)