Consumer DNA testing and the placebo effect (quick post)

Research shows that receiving genetic risk information for Alzheimer’s, cancer, obesity, etc. through consumer DNA testing can change actual body physiology, exertion/endurance during exercise, and the feeling of fullness after eating “in a self-fulfilling manner.” “Effects of perceived genetic risk … were sometimes greater than the effects associated with actual genetic risk.”

The placebo and nocebo effects can be powerful —

(Bradley P. Turnwald, et al., Nature Human Behavior, December 10, 2018).

Consumer DNA testing can create a powerful placebo or nocebo effect.

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