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Chapter 53 of 81
黄帝内经·灵枢
Overall Paraphrase
The Yellow Emperor asked Shao Yu: People differ in the strength of their bones and sinews, the firmness or softness of their muscles, the thickness or thinness of their skin, and the density or looseness of their cou li (the interstitial spaces of the skin and muscles). How do these differences affect their tolerance of pain from acupuncture, stone needling, and huo ruo (heat therapies such as fire needling and moxibustion)? Likewise, the stomach and intestines differ in thickness, firmness, and fragility — how does this affect tolerance of medications? I wish to understand this in detail.
Shao Yu replied: Those with strong bones, supple sinews, relaxed muscles, and thick skin are better able to endure pain, and can equally tolerate the pain of acupuncture and stone needling as well as the burning heat of fire needling.
The Yellow Emperor asked: How can one tell whether a person can tolerate fire needling? Shao Yu replied: If, in addition, the person has dark skin and well-proportioned, beautiful bones, such a person can tolerate fire needling. The Yellow Emperor asked: How can one tell a person who cannot tolerate the pain of needling and stone therapy? Shao Yu replied: Those with firm muscles but thin skin cannot tolerate the pain of needling and stone therapy, and are equally intolerant of fire needling.
The Yellow Emperor further asked: When people fall ill, some are simultaneously struck by pathogenic influences — yet some recover easily while others recover with difficulty. What is the reason? Shao Yu replied: When people are struck by the same pathogenic influence, those whose bodies tend toward heat recover easily, while those whose bodies tend toward cold recover with difficulty.
The Yellow Emperor then asked: How can one determine a person's tolerance for medications (which the ancients referred to as "potent medicines" when their properties were strong)? Shao Yu replied: Those with thick stomach walls, dark skin, large bone structure, and obese physique generally can tolerate medications; whereas those who are emaciated with thin stomach walls generally cannot tolerate medications.
Note: In the original text, "gu li" (thigh interstices) should be read as "cou li" (interstitial spaces), and "huo pao/yan" should be variants of "huo ruo" (fire needling/heat therapy). This has been rendered according to standard medical principles.
This chapter establishes a correspondence between body constitution and tolerance of pain, heat, and medication, with the central idea that "physical form determines tolerance." Traditional Chinese medicine holds that the skin, flesh, sinews, bones, and organ thickness are nourished by qi and blood: those who are thick, relaxed, and moist have abundant qi and blood with strong tolerance, while those who are thin and tense have sluggish qi and blood with heightened pain sensitivity. 🔥
Regarding disease prognosis, the statement "those whose bodies tend toward heat recover easily, while those tending toward cold recover with difficulty" reflects the relationship between the flourishing or decline of yang qi and the capacity for recovery — when yang qi is abundant, qi and blood circulate powerfully and pathogens are easily dispersed; when yang qi is insufficient, cold congeals and qi stagnates, making illness linger. 💨
Regarding medication tolerance, the emphasis on the substantiality of stomach qi embodies the principle that "where there is stomach qi, there is life." Those with thick stomachs can receive and transform the partial nature of medications, while those with thin stomachs cannot withstand medicinal strength. 🌿
Modern medicine also acknowledges individual differences in pain thresholds, related to genetics, sex, age, psychology, neural sensitivity, skin structure, subcutaneous tissue, and other factors. However, the original text's method of judging pain and heat tolerance through external signs such as "strong bones, supple sinews, relaxed flesh, thick skin," and "dark complexion with beautiful bones" represents empirical generalization without rigorous evidence-based support, and should not serve as modern clinical criteria.
The statement "those who are warm recover easily; those who are cold recover with difficulty" may partially correspond to metabolic and immune status: moderate fever is often a sign of active immune response, though not all fever is beneficial. The "cold and heat" mentioned by the ancients are concepts of yin-yang excess or deficiency and cannot be simply equated with modern body temperature.
Regarding medication tolerance, body weight, body fat, and gastrointestinal function do indeed affect drug distribution and metabolism, but judgments based on "thick stomach," "dark skin," or "large bones" are overly coarse. Modern medication requires individualized assessment and cannot be determined by body type or skin color alone. 🩺
This content is based on classical Chinese medical texts and is provided solely for the study and appreciation of traditional culture. It does not constitute any medical diagnosis, medication, or treatment advice; please consult a healthcare professional when unwell.