# parasympathetic nervous system (rest and digest) The role is to slow the nervous system. Oversees a vast array of crucial bodily functions, including control of mood, immune response, digestion, and heart rate. Also handles [[urination]] (contracting the bladder). Balances the [[sympathetic nervous system]] (heart rate, blood pressure, pupils). How to ## Related - - [[ASMR]] - Autonomous Sensory Meridian Response is a tingling sensation that usually begins on the scalp and moves down the back of the neck and upper spine. A pleasant form of [[paresthesia]].