Whether you’re scowling or smiling, a groove forms on your skin the moment you move one of your facial muscles—and with time ...

Everyone smiles when they’re happy. But, what about smiling in the face of sadness? Can forcing a smile even while feeling blue elevate one’s mood? According to countless pop songs and concerned ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Put a pencil between your lips in just the right way, and you’ll feel happier—though you won’t know why. The result is so reliable, I used this trick on students as a foolproof demo when I taught ...

Put a pencil between your lips in just the right way, and you’ll feel happier—though you won’t know why. The result is so reliable, I used this trick on students as a foolproof demo when I taught ...

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, ...

Dimples are often considered one of the most endearing and attractive facial features. They add charm to a person's smile, ...