The Culprit Behind Snagged Stockings: Softening Cracked Heels with Body Fluids

How does modern science interpret the Donguibogam's insight on depleted body fluids? It can be explained by a weakening of skin barrier function, moisture deficiency at the cellular level, and microcirculatory disturbance. Our skin is composed of several layers, and the stratum corneum of the outermost layer, the epidermis, is arranged tightly like bricks to protect the skin from external irritants and serve as an important skin barrier that prevents internal moisture evaporation. Key components of this barrier include ceramide and natural moisturizing factor. When these components run low, the skin barrier breaks down, moisture-retention capacity declines, and harmful external substances penetrate more easily, creating gaps just like a brick wall that has lost its mortar. The hardening of heel skin through keratinization is actually the body's defense mechanism to protect a compromised skin barrier. However, this excessive stratum corneum reduces skin flexibility and blocks the penetration of moisturizing ingredients, leading to more severe dryness and cracking. Furthermore, because the heels are situated at the lowest part of the body, blood supply from the heart can be relatively sluggish. Oxygen and nutrients must be delivered and waste products cleared through fine capillaries, but poor blood circulation prevents skin cells from receiving adequate nutrition and regenerating normally. In particular, stress or irregular lifestyle habits affect the autonomic nervous system, further impeding blood circulation and reducing the function of sweat glands and sebaceous glands, leaving the skin even drier. The concept of body fluids in the Donguibogam goes beyond simply drinking water to include moisture and nutrients generated during cellular metabolism, which directly aligns with what modern medicine terms fluid balance and tissue hydration. Systemic conditions such as hypothyroidism and diabetes can also induce dry skin and heel hyperkeratosis, while essential fatty acid deficiency and deficiencies in vitamin A and vitamin E also significantly affect skin health. Sebaceous gland hypofunction and collagen loss due to aging also cause skin to lose elasticity, worsening cracking. Therefore, heel health serves as an important indicator reflecting the state of our whole body rather than being a purely localized concern, showing why a fundamental approach that hydrates from deep within down to every single cell is necessary.