Reactivity is when your dog overreacts to things in the environment — like barking or lunging at other dogs, people, bikes, or noises. It’s often caused by fear, frustration, or excitement. Your dog isn’t being “bad,” they’re overwhelmed — and they need your help to feel safe.

This guide will help you understand how to teach your dog to feel calmer and respond differently over time. You’ll use positive reinforcement only — no yelling, leash popping, or punishments.