Genuine smiles activate both mouth and eye muscles, while fake smiles involve only the lips, revealing emotional authenticity through facial cues.

Doctor and researcher Guillaume Duchenne de Boulogne became obsessed with smiles. His electrical experiments allowed him to conclude that a truly happy smile is formed not only by the muscles of the ...

Cultivating happiness can take a lot of practice. But there is one way to boost one’s mood easily. During a conversation with TODAY’s Hoda Kotb on the March 27 episode of her podcast, “Making Space,” ...

Like most mothers, I only saw perfection when my first son was born. That quickly changed when we began to question pediatricians about his physical and cognitive delays. Don’t worry, they said. Boys ...

In 1862, French neurologist Guillaume Duchenne carried out an experiment. He stimulated people's facial muscles with small amounts of electricity to test which facial muscles we use for certain facial ...

In looking at the research on smiles and on gratitude, these seemed to be part of a love attraction tapestry. Just as the persuasive “light up your life” smile can be practiced, gratitude can be ...

We all know that "service with a smile" makes us feel good. But what about nodding our heads? New customer service research shows that a genuine "Duchenne" smile combined with repeated "down-nods" is ...

You’ve probably heard the claim that it takes more muscles to frown than to smile. It’s usually framed as a feel-good reason to turn your frown upside down – less effort, more joy. But anatomically, ...

On Sept. 10, Meghan received flowers during a walkabout appearance at Windsor Castle with Prince Harry, Prince William, and Kate Middleton. Meghan appeared to refuse to give the bouquet to a royal ...

PITTSBURGH--A smile that lifts the cheeks and crinkles the eyes is thought by many to be truly genuine. But new research at Carnegie Mellon University casts doubt on whether this joyful facial ...

Facial expressions are a form of nonverbal communication. When we see someone with a big smile, we might assume that the person is happy. That's simple enough. But I learned recently that we can even ...

Facial expressions are a form of nonverbal communication. When we see someone with a big smile, we might assume that the person is happy. That's simple enough. But I learned recently that we can even ...