The function of the gallbladder described in the Donguibogam bears a striking resemblance to the roles of specific brain regions and the autonomic nervous system explained in modern medicine. The phenomenon of bodily shaking when we feel nervous or anxious can largely be viewed as a type of physiological tremor, which is our body's natural defense response to stress.
When we experience stress, the amygdala becomes active and sends stress signals to the hypothalamus. The hypothalamus stimulates the sympathetic nervous system to trigger the fight-or-flight response. At this time, our body secretes stress hormones such as adrenaline and cortisol, and these hormones prepare the body for an emergency by accelerating the heartbeat, raising blood pressure, and tensing muscles. In this process, repetitive fine contractions and relaxations of muscles occur, producing tremors. These tremors tend to appear more noticeably in areas with frequent fine motor movements, particularly the hands.
Furthermore, an imbalance in neurotransmitters also influences tremors. Gamma-aminobutyric acid, or GABA, is a neurotransmitter that provides a sense of stability by inhibiting brain activity, but under conditions of anxiety or stress, the function of GABA can diminish or become unbalanced. As a result, excessive excitation of the nervous system is not regulated, which can worsen tremors. Ultimately, the weakening of gallbladder qi mentioned in the Donguibogam can be explained in modern medicine as an autonomic nervous system imbalance caused by stress, especially the excessive activation of the sympathetic nerve and an imbalance of neurotransmitters. If such tremors are severe enough to interfere with daily life or are accompanied by other symptoms such as palpitations, dyspnea, or dizziness, it may be an anxiety disorder or another neurological issue beyond simple nervousness, making it essential to seek professional help. It is vital to listen closely to the signals sent by your body and care for them with warm attention.
