Psychology research suggests that the human body, particularly the muscles on our face, plays a key part in the processing of others' emotions. For instance, past findings suggest that when we see ...

Facial expressions of emotion—such as the joyful smile you might display when encountering a friend or your angry frown when being cut off in traffic—are powerful social signals that are able to evoke ...

When a baby smiles at you, it's almost impossible not to smile back. This spontaneous reaction to a facial expression is part of the back-and-forth that allows us to understand each other's emotions ...

Living alongside humans changed both how dogs behave and how they look. Research shows that domestic dogs developed a small facial muscle that helps them create the familiar “puppy dog eyes” ...

New research suggests facial expressions, used under pressure could give narcissists away before they even speak. We usually ...

The expression “a smile a day keeps the blues away” may have some credence beyond the realm of greeting card messages. The lingering question of whether a smile or frown lifts or depresses emotion has ...

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