“Both of those states, feeling too alert and too calm, if you will, relate to the function of the so-called autonomic nervous system...”

“Its relaxation (parasympathetic mode) is linked to viewing horizons and panoramic vision.”

“Discussion on how fasting rebalances the sympathetic and parasympathetic nervous systems.”

“The part of the nervous system that automatically controls involuntary bodily functions, composed of the sympathetic and parasympathetic sides, a key mechanism targeted by SGB to restore balance.”

“debilitating autonomic nervous system symptoms”