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Lucky charms really do improve an athlete's performance. Taking a placebo, even when you know it is a placebo, can still improve your health. David Robson takes us on a tour of the cutting-edge research happening right now that suggests our expectations shape our experience.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.