A seemingly picture-perfect moment at Trump’s birthday military parade has ignited a storm of speculation. Cameras caught ...

From uncomfortable family portraits to forced workplace smiles, our brains often sense something’s off before we can explain ...

Fake or polite smiles, on the other hand, usually involve only the mouth muscles. The eyes remain wide or indifferent, and ...

How to spot a fake smile from the real thing - The difference between the two is a surprising blend of facial anatomy, ...

But what is it about a smile that makes it feel sincere—or fake? The answer lies in a surprising blend of facial anatomy, neurology and emotional authenticity. Not all smiles are created equal ...

Analysis: What makes a smile feel sincere or fake is due to a surprising blend of facial anatomy, neurology and emotional authenticity You've probably heard the claim that it takes more muscles to ...