Prof. Seungho Baek's Medical Insight

The conventional approach to insomnia treats sleep as a nighttime problem requiring nighttime interventions. Classical Korean medicine takes a structurally different position: the quality of night sleep is determined primarily by what happens during the day. This is not a soft wellness claim — it aligns with what circadian biology, the IARC’s cancer-risk classification of shift work, and the modern glymphatic system literature have all confirmed independently.

Modern medicine treats hormones as causes — low thyroid causes hypothyroidism, treatment is replacement. The cause-based framing works in clear-cut deficiencies and fails in the much larger middle ground where labs are “normal” or replacement produces only partial benefit. Hormones as conversations — not causes — is the structural alternative classical Korean medicine offers, and modern endocrinology is increasingly converging on this view.

Classical Korean medicine assigns the kidney the role of storing the body’s concentrated essence and governing bone — claims modern endocrinology long treated as poetic abstraction. Then the 2007 discovery of osteocalcin revealed that bone is an endocrine organ that regulates insulin and energy metabolism, with the kidney as upstream control point. The convergence is one of the cleaner examples of classical Korean theory anticipating modern endocrinology by centuries.

Classical Korean medicine separated 정기 (vital force) and 사기 (pathological factor) cleanly by source — clean food versus spoiled food, fresh air versus polluted air. Then modern abundance arrived, and the categories began to overlap in ways the classical framework never anticipated. The same substance that nourishes in small amounts harms in large amounts. The modern inversion of zheng qi and xie qi is one of the more important conceptual shifts for understanding chronic disease in abundant societies.

Modern medicine identifies disease through naming — diagnostic categories that determine treatment. Korean medicine distinguishes 변병 (naming the disease) from 변증 (identifying the current pattern) and emphasizes the latter, because diseases are dynamic processes that change over time. Understanding bian bing vs bian zheng clarifies why so many patients feel that Korean medicine sees something different from what their Western diagnosis captures.

The dominant framing of cancer in modern oncology is conquest — the disease is the enemy, eradication is the goal. The framing has produced real clinical gains and a curious failure mode: patients who survive their treatment but die of its sequelae. Korean medicine has taken a different starting position for centuries, and the strategy that follows from it has quietly become more relevant as oncology itself moves toward immunotherapy and host-support research.

The Huangdi Neijing organizes human development into 7-year cycles for women and 8-year cycles for men, with specific biological transitions at each cycle boundary. The framework is sometimes dismissed as numerological, but a careful reading reveals a phase-based model of human biology that anticipates much of what modern endocrinology has independently confirmed — and that captures features of aging the continuous-decline model still struggles with.

Heart palpitations are one of the most common reasons patients consult a physician — and one of the most frequently misdiagnosed presentations in modern medicine. The cardiology workup returns normal; the symptom continues. Korean medicine reads palpitations as a four-organ network problem — heart, liver, gallbladder, and stomach — and the clinical pattern determines which treatment will actually resolve the symptom.

Cholesterol is treated in modern medicine as essentially a problem — a substance to be driven downward through statins or diet. The clinical results of this approach have been mixed in ways the conventional framing struggles to explain. A different reading is possible. Cholesterol and Jing (정), the classical Korean medical concept of stored essence, describe many of the same functional roles in physiology. The convergence is striking enough to take seriously.

The Huangdi Neijing states that women age visibly at 35 and lose reproductive capacity by 49. The numbers are not biological constants — they describe a specific historical population whose lives looked nothing like modern lives. The deeper concept the text introduces is Jing (정), the body’s stored essence, built from surplus. Once the theory of surplus is in view, why modern aging looks different from ancient aging answers itself.