The sound of laughter may make you smile and laugh, British researchers report. "It seems that it's absolutely true that 'laugh and the whole world laughs with you,'" Sophie Scott, Ph.D., says in a ...

Psychologists have long pondered the meaning of laughter, and more recently, they've asked what it tells us about the relationship between people. GREG BRYANT: Can people make accurate judgments about ...

Scientists have long known that the bond between parent and child is vital to a child's social, emotional, and cognitive development. Secure attachment leads to better emotional regulation, healthier ...

When scientists set out to trace the roots of human laughter, some chimps and gorillas were just tickled to help. Literally. That's how researchers made a variety of apes and some human babies laugh.

Laughter is an everyday reminder that we humans are animals. In fact, when recorded laughter is slowed down, listeners can’t tell whether the sound is from a person or an animal. We throw our heads ...

Add Yahoo as a preferred source to see more of our stories on Google. A well-deployed laugh can help grease a social interaction, even if nothing is funny. Catherine Falls Commercial/Moment via Getty ...

For many years, psychologists and behavioral biologists agreed that laughter was a unique emotional expression found only in humans. However, as the study of animal emotions expanded this idea was ...

A cackle and a giggle can mean different things. Scientists say there are two types of laughter: the kind that comes from pure glee, and the kind that's meant to send a social message. New research ...