A protocol or procedure is provided for lowering sympathetic nervous system arousal in a person in order to prepare that person for a medical or dental procedure. First, a therapeutic dosage of one or more neurotransmitter supplements, such as a gamma aminobutyric acid formulation, a tryptophan-derived neurotransmitter precursor, and dehydroepiandrosterone are administered to the patient. Concomitantly, gelled electrodes are placed adjacent or below the mastoid. The gelled electrodes are connected to a cranial electrotherapy stimulation device that administers a sub-sensation level current to the patient. Also, a noise dampening headset is placed on the patient and a neuroacoustic entrainment recording or program is played. Next, light is blocked with black out glasses. Then, the medical or dental procedure is performed.
