Exactly how do placebos work? Researchers believe that, through the power of suggestion, placebos may unleash the power of our own subconscious minds to cure ourselves. I was honored to participate in McGill Universityโs groundbreaking study of an accessory-assisted placebo. Could a fake, non-functioning โSham Brain Scannerโ enable children with ADHD and other neurological conditions to alleviate their own symptoms?