The Vagus Nerve Hack: How to Reset Your Nervous System and Unlock Instant Calm

The Impact of Cold Water on the Nervous System
It might seem strange, but contact with cold water is a positive shock for the vagus nerve. When you splash your face with ice-cold water or take a 30-second cold shower at the end of your routine, the body increases vagus nerve activity to adapt to the temperature. Over time, this simple exercise makes your nervous system stronger and more flexible even against psychological stressors.