+The sympathetic nervous system is a primary division of the [Autonomic Nervous System](/wiki/autonomic_nervous_system), orchestrating the body's rapid response to perceived threats. It initiates the "fight or flight" reaction, preparing the organism for action by increasing [Heart Rate](/wiki/heart_rate) and diverting energy resources.
+## See also
+- [Parasympathetic Nervous System](/wiki/parasympathetic_nervous_system)
+- [Nervous System](/wiki/nervous_system)
+- [Stress Response](/wiki/stress_response)
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