Children need to feel their feelings, but too often, they become overwhelmed by them. When they're visibly upset, that's when parents tend to swoop in and offer comfort, perhaps with words or hugs (or OK, sometimes goldfish crackers and YouTube Kids). But it's even more important to teach them how to calm themselves.

Psychotherapist Amy Morin, who wrote the new book 13 Things Mentally Strong Parents Don't Do, says that being able to deal with stress, anger, frustration, and anxiety requires a specific set of skills. And that's where brain training comes in.