A psychologist explains the evolutionary and psychological roots of laughter, and what an infant’s giggles teach us about how adults bond.

Humor has always been subjective. Where some people prefer the physical comedy of Jim Carrey, others may find the dry approach of Albert Brooks preferable. Babies, of course, are not big on subtlety.

Babies and their laughter is something we cannot ignore. The adorable babies any which way win our hearts with their cute little look. They do not need any special occasion to laugh or to cry. Here is ...

Sometimes a laugh can add sunshine to a down day -- especially if it's one of those authentic, uncontrollable, body-shaking ones. After all, laughter is good for the mind, body and soul, no matter the ...

Add Yahoo as a preferred source to see more of our stories on Google. I've often said that there's nothing better than kittens or puppies, but I forgot to add the one thing I think we can all agree on ...

More than 100 million people have watched a woman crack up in a Chewbacca mask. In her car! Just hanging out outside of a Kohl’s! It is the most simple thing ever, yet it’s snowballed into Facebook ...

I've often said that there's nothing better than kittens or puppies, but I forgot to add the one thing I think we can all agree on: a baby's heart laugh! It's the sound of pure happiness! Getting ...

Babies can't possibly get a joke, so what causes their giggles? The answer might reveal a lot about the making of our minds, says Tom Stafford. What makes babies laugh? It sounds like one of the most ...