In this episode of Always Wondered, why do we cry?  Humans are the only creatures who can burst into tears when we’re happy, sad, or watching a cooking competition!  We’ll explore why.  Also - there once was a time when you could sing along with all kinds of catchy TV theme songs.  But today they’ve pretty much disappeared.  Learn what happened.  Plus - while slang words like “groovy”, “rad” and “far out” have left the building, hear why “cool” has become the coolest survivor in the English language.  Join host Rick Peterson as he answers more of the questions you’ve Always Wondered about.