Anxiety and depression medications are 3 times more likely to make you feel better if you think they’re going to work.  (, )

Iridescent deli meat is perfectly normal.  A rainbow or ‘oil slick’ effect sometimes happens when meat is cut ‘against the grain,’ because slicing through bundles of muscle fibers can result in a greasy surface that is perfect for light diffraction- but it’s still safe to eat.  (, )