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 ...

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 ...

No facial expression is as synonymous with happiness as the smile, and no smile instantly conjures up positive perceptions like the Duchenne Smile. You may be unfamiliar with its technical name, but ...

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 ...