For Americans navigating everything from casual conversations to crucial business dealings, understanding the nuances of a genuine smile can offer deeper insights into true intentions. The science ...

Feeling good makes us smile, right? Sure, although a new study suggests the reverse may also be true: Smiles might be good for our health. In the study, to be published in an upcoming issue of ...

Smile and the world smiles with you -- but new research suggests that not all smiles are created equal. The research shows that people actually anticipate smiles that are genuine but not smiles that ...

Mona Lisa’s smile is mysterious, the Cheshire Cat’s is devious, the Joker’s is mischievous and Buddha’s beatific. Humans probably have been smiling for as long as they’ve been around. But despite the ...

Dreams have been described as dress rehearsals for real life, opportunities to gratify wishes, and a form of nocturnal therapy. A new theory aims to make sense of it all. Ever noticed how there are ...

Ever noticed how there are basically two types of smiles: a genuine smile and a fake one? This distinction has been of interest to researchers for quite some time now. In fact, the genuine smile has a ...

Mona Lisa's famous smile might not have been genuine when she was painted by Leonardo da Vinci more than 500 years ago. Scientists wanted to investigate Lisa Gherardini's facial expression and apply ...

Someone is either ticked off and trying to cover it up with a grin, or is actually happy but pretending to be angry. What it looks like: A closed-mouth smile, with the lips tightened. The inside ...

The one on the right came from frustration; the one on the left is genuine. But when researchers asked participants to act frustrated, 90 percent didn't smile; however, when researchers made ...

Smile and the world smiles with you — but new research suggests that not all smiles are created equal. The research shows that people actually anticipate smiles that are genuine but not smiles that ...