Smiling and the Surprising Science Behind Dating Profile Photos. Or, how I learned to stop worrying and love the duck face.

Smiling makes you more attractive. But is that the kind of attention you want? Turns out, there’s some surprising science behind smiling, attraction, and online dating profile photos. Attractive faces are a social signal that impact your social life and opportunities, including mate choice. When people see an attractive face, parts of their brain light…