Ever wonder why everyone looks so grumpy in old photos? It turns out a smile meant something very different in the 1800s.

This article originally appeared on Health. If toothpaste and lipstick commercials are to be believed, a big grin can make you look more attractive, more approachable, and years younger. While the ...

The human face is powered, depending on how you count them, by between 23 and 43 muscles, many of which attach to the skin, serving no obvious function for survival. An alien examining a human ...

After being let go, Ryan channelled her rage into a novel called You Should Smile More, a workplace revenge fantasy about a ...

Scientists have found out that test subjects almost always perceive the facial expression on Leonardo da Vinci's famous painting as happy, thus calling into question a long-held assumption in art ...

In the late 1960s a psychologist named Albert Mehrabian co-authored two influential studies investigating how important the semantic meaning of words were in regards to how people communicate emotions ...

China’s humanoid robotics industry is entering a new phase, not just focused on mobility ...

Here's what to know about the State Department's passport rules and the reason behind them.

Most of us aren’t aware of what our natural facial expression is saying about us — without us saying a word! To anyone who isn’t sure: ask someone you trust to tell you the truth about your natural ...