The adrenal response and chi
There definitely is a connection here. The adrenals are not interpreted separately from the kidneys in Chinese medicine. In some of the Chinese styles that developed during times of war (developed to accelerate skills in a short period of time) the chi of the kidneys were tapped like a faucet through various internal exercises. The five element method of internal development and other meditation practices, requiring a protracted period of training, were neglected.
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