In modern medical terms, the concepts of upper heat and lower cold and qi imbalance of the triple energizer from the Donguibogam align closely with dysregulation of the autonomic nervous system. The autonomic nervous system manages functions necessary for sustaining life without conscious effort, including heartbeat, respiration, digestion, and thermoregulation. Maintaining balance between the sympathetic nerve and the parasympathetic nerve is essential, and the symptoms of upper heat and lower cold emerge when this regulatory control falters.
When persistent stress, fatigue, or irregular habits overstimulate the sympathetic nerve, the body reacts as if facing an emergency and releases excess stress hormones such as cortisol. This increases the heartbeat and redirects blood flow toward the head and chest, producing a hot flash. The face reddens, heart palpitations occur, and feelings of nervousness or tension increase.
At the same time, sustained sympathetic dominance reduces parasympathetic activity, impairing circulation to the lower abdomen and extremities. Much like hands and feet turning cold during sudden tension, energy remains concentrated in the upper body while circulation downward weakens, resulting in lower body cold marked by a chilled lower abdomen and cold hands and feet. This imbalance extends beyond skin temperature.
It directly alters brain function. Chronic autonomic nervous system imbalance impairs the steady production and release of neurotransmitters such as serotonin, dopamine, and norepinephrine. These chemical messengers govern mood, well-being, and motivation. A decrease in serotonin, often referred to as the happiness hormone, contributes directly to depression and persistent fatigue.
Furthermore, disruption of the autonomic nervous system causes digestive system hypofunction, compromising intestinal health. Through the gut-brain axis, this disturbance can encourage neuroinflammation and interfere with normal neurotransmitter synthesis. Upper heat and lower cold serves as a physical indicator that autonomic dysregulation is affecting neurological and emotional health. Modern science continues to demonstrate this core insight from the Donguibogam: the physical body and mental state function as an interconnected whole.
