The lack of a proper function of the involuntary nervous system: "Those who have dysautonomia are usually afflicted with a rare hereditary disease involving the body's improper regulation of the heart, intestines, metabolism, and/or glands; any of which can hinder proper digestion, perspiration, the modulation of blood pressure, etc."

"Additional negative results of dysautonomia can be mental retardation, lack of normal motor coordination, vomiting, frequent infections, convulsions, etc."