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 ...

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” ...

You're relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it's a muscle in your arm, your leg, or your foot that begins to spasm—sometimes for a few seconds, sometimes for ...

From athletes to business leaders to parents, we admire people who keep their cool when life turns up the heat. Mastering ...