Many people don’t realize that there are various health reasons why someone might feel uncomfortable showing their teeth when ...

Smiling depression is when you’re depressed or anxious but fake it on the outside with a happy face. Find out why it may be more dangerous than the classic one.

We usually think of smiles as a reaction to feeling happy. But there are several reasons to make the effort to smile, even when you don’t feel like it.

Researchers flashed an array of images of the same people either smiling, neutral-faced or looking surprised to a group of 40 participants and found that they perceived the surprised faces to look ...

Researchers have discovered a surprising reason we smile in photos ...

People in Japan who have become accustomed to wearing a face mask have turned to the help of a professional -- enrolling in smiling lessons.

Even if science doesn't agree that animals can smile, animal lovers everywhere know it's true! Snickers is an adorable Calico cat who always looks like he's smiling.

It turned out that the people in the study were most likely to underestimate the age of a person when looking at him/her smiling. What explains a smile's apparent age-defying effect?

Now, Hod Lipson at Columbia University in New York and his colleagues have created a robot called Emo that uses AI models and high-resolution cameras to predict people’s facial expressions and ...

Smiling really can make people feel happier, according to a new article. A team of psychologists combined data from 138 studies testing more than 11,000 participants and found that facial ...

These commercial cues that smiling was what you should do in a photograph were particularly effective at influencing people, bypassing the need to explain why someone should be beaming at the camera.