When your child’s nervous system is in overdrive, cool water can act like a reset button to bring them back to calm. Why it works: Cool water provides strong sensory input to the brain, which interrupts the stress response. It can also activate the diving reflex, a calming biological response that slows the heart rate and sends a message of safety to the nervous system. Plus, it gives the brain something new and concrete to focus on, helping shift attention away from emotional overwhelm. But lik