The sympathetic nervous system is triggered when a scary, enraged dog suddenly approaches you.
What exactly is the sympathetic nervous system (SNS)?
Your sympathetic nervous system is a part of your autonomic nervous system. It may be referred to as your "automatic" nervous system because it regulates a number of unconscious functions. This includes controlling your heart rate, blood pressure, digestion, urination, and perspiration, among other things.
The most well-known function of your sympathetic nervous system is its capacity to respond to dangerous events. Your sympathetic nervous system activates in reaction to this to speed up your heart rate, pump more blood to your body's critical places, among other responses, to assist you flee the danger.
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