Weizheng (flaccidity syndrome): an disease symptomized by muscular atrophy caused by chronic slackness and weakness of the body and tendons.  It mostly occurs in the lower limbs, but can appear on a single limb or on all four extremities.
1. "How does weizhheng come into being?" asks the Yellow Emperor.
2. "Lungs are the leader of the organs, and are the canopy of the heart," Qi Bo answers.
3. When one meets things against his wish or cannot get what he wants, the lung qi may become blocked,  resulting the pathological changes. I'm not able to offer you these, even though all the neighbors have them. But you promised!
4. Therefore,  the disease of the five organs are caused by the scorched lung.
5. Excessive sadness may injure the pericardium and prevent the heart qi from ascending and descending properly. When yang qi moves recklessly, it presses the blood downward and results in bloody unne. This ailment looks quite serious.
6. It is said in the Bcok of Ailments that emptiness of the mam meridians may cause jioi and develop into flaccidity due to a deficiency of the blood supply.
7. Delusions, unsatisfied desire, the mind drifting outside the body, and exhaustion due to sexual indulgence all slacken the male genitals. Then the disharmony becomes flaccidity due to malnutrition of the muscles and results in whitish or turbid urine.
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