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MENTAL MODEL · M1693

Hair is the Surplus of Blood

Hair is the Surplus of Blood
BehaviorHigh supportOrganizational Behavior
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

The growth, shedding, and luster of hair depend on the nourishment of blood. Sufficient blood makes hair lustrous; blood deficiency makes hair dry; blood heat causes whitening or loss of hair.

SCAFFOLDING EFFECT

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Detection of terminal energy supply. Hair is the least important part of the body (surplus). If the body lacks blood, the first supply to be cut off is hair. Hair loss is the body sacrificing the pawn to save the king, indicating blood deficiency.

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In traditional Chinese medicine theory, 'Hair is the surplus of blood': hair is generated from the surplus qi of blood, and the prosperity or decline of blood is externally manifested in hair, so hair quality reflects the state of qi and blood; as a model of 'internal state manifested externally in appearance'.

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Source support: Explicit

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