Conversely, people (and dogs) who are chronically in defend mode are more defensive and anxious, and they have only rare moments of perceived safety. They tend to see new situations, people, and ideas as potential threats, rather than as opportunities. Such chronic wariness was adaptive in some ancient environments, and may still be today for children raised in unstable and violent settings. But being stuck in defend mode is an obstacle to learning and growth in the physically safe environments that surround most children in developed nations today.

