The internet is divided over a woman smiling after a custody battle, claiming it's not different than a man doing it.

Research shows that there are differences in how much men and women smile, but there are even more important differences in how smiles are perceived. For example, research suggests that some men may ...

At a press conference in the Oval Office this week, President Donald Trump berated CNN’s Kaitlan Collins for “not smiling” after she asked about the Justice Department’s investigation of convicted sex ...

A smiling photo generally makes you more likable and credible. A study just published in the Journal of Consumer Research looked at the effect of smiles in Airbnb host photos by analyzing eight months ...