“You know,” I said to her, “scientists found that petting your dog can help you calm down when you’re upset.” She didn’t hesitate to put her hand on his neck and stroke him. In a few moments, the tears slowed and her breathing improved. She sat there petting him slowly, and in a matter of minutes it was almost as if nothing had happened. Since her worries tend to pop back up at bedtime, I asked if we could move the dog’s bed into her room. He’s slept by her side every night, and we’ve had no bedtime struggles since.