Looking at the insightful wisdom of Donguibogam through the eyes of modern medicine, the numbness in hands and feet and muscle weakness brought about by chronic drinking lead to the diagnosis of alcoholic neuropathy. This is a disease that occurs when alcohol and its metabolites exert direct toxic effects on our body's peripheral nerves. Although it is more common than one might think, it is also an issue whose severity is easily overlooked by many.
The peripheral nerves in our body branch out from the brain and spinal cord to spread throughout the entire body, playing crucial roles in regulating sensory, motor, and autonomic nervous system functions. However, alcohol damages the membranes of these delicate nerve cells and disrupts the balance of neurotransmitters. This can be viewed as similar to a situation where the insulation of an electrical wire peels off, causing a short circuit or preventing signals from being properly transmitted. Initially, paresthesias such as numbness, tingling, burning, and hypoesthesia begin to appear primarily at the distal ends of the limbs, namely the hands and feet. This is called a glove-and-stocking distribution, characterized by symptoms appearing symmetrically in areas where one would wear socks or gloves.
Progressing further, it can also affect motor nerves, leading to muscle weakness, muscular atrophy, and impaired sense of balance. Walking or climbing stairs becomes difficult, and in severe cases, fine motor movements such as frequently dropping objects or buttoning clothes can become difficult. If the autonomic nervous system is damaged as well, unexpected symptoms such as indigestion, constipation, diarrhea, urination disorders, erectile dysfunction, and abnormal regulation of heart rate and blood pressure may even appear.
Alcohol also hinders the absorption of the vitamin B complex, particularly thiamine (vitamin B1), and promotes its excretion, inducing a deficiency. Thiamine is an essential nutrient for the energy metabolism and maintenance of function in nerve cells, and when this thiamine becomes deficient, nerve injury accelerates even further. That is why serious neurological complications, such as Wernicke-Korsakoff syndrome caused by vitamin B1 deficiency, can appear in chronic drinkers.
The damp-heat mentioned in Donguibogam can be interpreted in modern medicine as substances that induce inflammatory responses and oxidative stress generated during alcohol metabolism, as well as the toxic substances that accumulate within nerve cells as a result. The weakening of our body's vital essence and qi and blood signifies a state made more vulnerable to nerve injury due to nutritional deficiencies and an overall decrease in immunity. Although improvement in symptoms can be expected if alcoholic neuropathy is diagnosed early and drinking is stopped, nerve injury may remain permanent and difficult to recover from if neglected for a prolonged period, so it is a condition that must never be taken lightly.
