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Many of the neurological features of triple A syndrome are caused by dysfunction of the autonomic nervous system. This part of the nervous system controls involuntary body processes such as digestion, blood pressure, and body temperature. People with triple A syndrome often experience abnormal sweating, difficulty regulating blood pressure, unequal pupil size (anisocoria), and other signs and symptoms of autonomic nervous system dysfunction (dysautonomia).
People with this condition may have other neurological abnormalities, such as
Most of the neurologic features of triple A syndrome begin during adulthood, and they often worsen over time.