Average, it turns out, is stunning, hot, and gorgeous, and makes me seriously question how I look. By using a special computer program, scientists put hundreds of pictures of women's faces ...

LaFrance is the author of “Why Smile? The Science Behind Facial Expressions.” Her research suggests that on average, women smile more frequently than men and the durations of the smiles last ...

__Wired.com: __Are there differences in the way males and females smile? __LaFrance: __On average girls and women smile more. This appears to be a function of two things. Boys are encouraged not ...

Smiling images evolved then to project happiness and complacency through television and advertising in the '50s, Otto said, as society rolled back wartime advancements for women and they morphed ...