According to Daniel G. Amen, MD, author of Making a Good Brain Great, placebos (inert substances with no physiological effects or medicinal properties) are astonishingly effective. He noted that 150 years ago, doctors relied more on their relationship with their patients and the administration of placebos to treat illnesses. Many patients improved, based on how much they trusted their doctors and how much they believed that they would get well.
Recent studies have shown that the placebo effect works for diseases such as depression, anxiety, and Parkinson’s (although not for cancer or Alzheimer’s). One researcher theorizes that expectations influence how well placebos work. For example, Parkinson’s results from the lack of dopamine in the brain. And our brains produce dopamine in response to expectations. The takeaway? Your mind may be able to help you think yourself well!