It’s something Yoga 216 founder Nicole Katz knows all too well, which is why she came up with a Sad and Glad yoga routine that helps kids name their feelings, process them and move forward.

There are only four types of madness: bad, mad (angry), sad and glad; and we may at different times exhibit all four. No one is exempt. Bad-mad people cause harm to other people.

The book is called "The Sad Mad Glad Book: The Anatomy of Your Attitude." This is a great book to sit down and read to young children.

Chuck Stump and Jim Strawn have written another outstanding children's book. It follows their first award-winning book, "The Sad Mad Glad Book," which is a superb motivational resource for children.

There are only four types of madness: bad, mad (angry), sad and glad; and we may at different times exhibit all four. No one is exempt. Bad-mad people cause harm to other people.

In that one sentence, she distilled a lesson I keep relearning after 20 years of teaching and 10 years of parenting: When kids get mad — when they hit, scream, swear, glare, crumple up homework ...