During a sympathetic response, commonly referred to as the fight-or-flight response, urine output typically decreases rather than increases. This physiological reaction is triggered by stress or danger, preparing the body for quick action.
When the sympathetic nervous system is activated, it releases adrenaline and other hormones that lead to various changes in bodily functions. One of these changes is the constriction of blood vessels in the kidneys, which ultimately reduces blood flow to these organs. As a result, the kidneys produce less urine.
Additionally, the body prioritizes functions that are essential for immediate survival, like increased heart rate and enhanced blood flow to muscles, while less critical functions like urine production are temporarily suppressed. In essence, the body focuses on a survival mode, which conserves resources and energy during stressful situations.