Image of the Day: Expressions of pain involve pulling the face inward and expressions of pleasure involve movements that expanded the face, such as raising the eye brows. https://the-scientist.com/image-of-the-day/image-of-the-day--pain-or-o-face--64

Image of the Day: Expressions of pain involve pulling the face inward and expressions of pleasure involve movements that expanded the face , such as raising the eye brows. http://bit.ly/2pMDE8I  [more]