There are lots of exciting things to look forward to in your child's first year, but the one baby milestone that most parents ...

Baby girl unable to blink or smile diagnosed with rare disorder - A mother first noticed something was wrong during pregnancy ...

This baby has a smile that lights up the whole sky, but then he levels up that happiness and laughs — and he does it all in ...

The Truth Behind Your Baby’s Smile Baby smiles give researchers an engaging window into infant social, physical and emotional development, but what else do those adorable grins tell us?