Dog anxiety: what it is and how to reduce it

That’s why most dogs bark and become agitated when they hear loud noises, when approached by strange people, or when in a completely new environment (such as the vet’s office, for example).

But dogs who suffer from anxiety might experience fear in an extremely exacerbated way and even become dangerous. Aging and illness-induced anxiety: There’s a disease called cognitive dysfunction syndrome that affects older dogs ability to learn, perceive, and remember things.