People who have wrinkles around their eyes when they smile or frown are perceived as more sincere

Though the beauty industry seeks to eradicate them, research has shown that having wrinkles can be a positive thing. Researchers from Western University and the University of Miami found that human brains are pre-wired to view people as more sincere if they have wrinkles around their eyes when they smile and frown. People who have the so-called'Duchenne marker' are viewed as conveying more intense and more sincere emotions. Researchers used a method called visual rivalry and showed study participants photographs of expressions with and without the Duchenne marker to see which expressions are perceived as more important. When different images are shown in each eye, the brain alternates between these two images, but will bring the image that is perceived as more relevant into perceptual awareness more often.