Did you know that the concept of the 'triple energizer' in Donguibogam is very closely linked in modern medicine to the combined functions of the autonomic nervous system and the endocrine system? Just as the triple energizer manages the internal energy highway, the autonomic nervous system delicately coordinates all functions essential for life—such as heartbeat, digestion, thermoregulation, and hormone secretion—regardless of our conscious will. The endocrine system acts as an orchestra conductor guiding all these processes through hormones secreted by the thyroid gland, adrenal gland, pancreas, and more.
The symptoms we commonly feel as 'upper heat and lower cold'—such as flushing in the face and chest, trembling hands, while having cold hands, feet, or lower abdomen—can be a strong signal that the harmony between the autonomic nervous system and the endocrine system has broken down. In particular, chronic stress, a common modern ailment, excessively activates the sympathetic nerve, causing the body to constantly perceive an emergency state. When sympathetic hyperactivity occurs, heart rate quickens and blood pressure rises, preparing the body to fight or flee at any moment; as secretion of the stress hormone cortisol increases, metabolic activities throughout the body accelerate.
The issue is that when this sympathetic hyperactivity persists, a severe imbalance in our body's energy distribution results. Under stress, blood flow to the brain and major internal organs increases, while blood flow to the hands, feet, and abdomen relatively decreases. Consequently, areas around the brain and heart become overheated, while the hands and feet turn cold, creating a state of 'upper heat and lower cold.' Major symptoms of hyperthyroidism—such as heat sensation, hand tremors, and tachycardia—often appear from the intersection of this excessive hypermetabolism and autonomic nervous system imbalance. Thyroid hormone itself raises the metabolic rate of the entire body, generating body heat and speeding up heart rate. If these symptoms persist, it is important to suspect thyroid gland dysfunction beyond simple fatigue and seek an expert diagnosis.
Furthermore, long-term stress and autonomic nervous system imbalance affect major endocrine axes, such as the hypothalamic-pituitary-adrenal axis and the hypothalamic-pituitary-thyroid axis. When these axes fail to function properly due to stress, hormone secretion fluctuates, disrupting whole-body balance. Beyond simply having heat or cold hands and feet, understand this as a signal of complex biological reactions taking place deep within the body, and listen closely to your body's voice. Restoring your body's balance with care is more important than anything else.
