Beans of Pressure

Classically, Height is said to be measured in beans. The amount of pressure you need to apply for the pulse to yield the required information is measured in the imagined weight of mung beans. This is described in Chapter 5 of the Mai Jing and is figurative, of course. What really matters is the distance your finger travels relative to the total depth of the pulse.

The amount of pressure required to press into the bone, occluding the flow of blood in the radial artery, is said to be 15 beans. That is a standard applied to all people, so 15 beans on one person’s wrist could be several times the pressure needed on another person’s.

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