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Introductory Statement

The autonomic nervous system (ANS)
The part of the nervous system responsible for automatic, unconscious, involuntary activities of all organs of the body.
Central Regulation
The ANS is regulated by a complex network in the brain called the central autonomic network.
Autonomic Medicine
Autonomic medicine concerns disorders of regulation of body processes in which altered activities of one or more components of the ANS adversely affect health.
Dysautonomias
These disorders fall under the broad heading of dysautonomias.

Common Symptoms of Dysautonomias

  • Inability to tolerate standing (orthostatic intolerance)
  • Exercise intolerance
  • Heat intolerance
  • Increased or decreased sweating
  • Gastrointestinal disturbances
  • Genitourinary abnormalities
  • Cognitive dysfunction
  • Fatigue

Important Note

Dysautonomias may or may not have symptoms.