A psychologist explains the evolutionary and psychological roots of laughter, and what an infant’s giggles teach us about how adults bond. There’s nothing quite like bearing witness to a baby’s first ...

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.

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 ...

Dr. Mireault is a developmental psychologist at Vermont State University. My son was 14 weeks old when he made his first unmistakable whole-body belly laugh. In the months that followed, his laughter ...

Add Yahoo as a preferred source to see more of our stories on Google. (Photo Credit: @wut_tha_hales / Instagram) A heartwarming video of a baby laughing to his heart’s content over his mom’s goofy ...