As the Child Mind Institute’s website explains: “Anxiety manifests in a surprising variety of ways in part because it is based on a physiological response to a threat in the environment, a response that maximizes the body’s ability to either face danger or escape danger. So while some children exhibit anxiety by shrinking from situations or objects that trigger fears, some react with overwhelming need to break out of an uncomfortable situation. That behavior, which can be unmanageable, is often misread as anger or opposition.”