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

Few things are as heartwarming as hearing a baby's first laugh. I’ve experienced that moment with four children of my own, ...

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. 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 ...

Since 2012, I have been studying laughing babies. The question I am most often asked—frequently accompanied by incredulous laughter—is “Why?” And sometimes, “Wouldn’t it be better to study what makes ...

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 ...