Is your German Shepherd barking, lunging, or overreacting to every sound or movement? Learn why German Shepherds can be reactive and how exercise, training, and mental enrichment can help calm their energy. German Shepherds are one of the most intelligent, loyal, and driven breeds — but that can also make them prone to reactivity. If your dog barks excessively, pulls on the lead, or reacts to other dogs, it’s often not “bad behavior.” It’s communication. Reactivity in German