The Low Classic: an ancient medical work, now last.
Jinwei: impotence.

Rouwei (muscular flaccidity due to damaged muscular function): one type of flaccidity has symptoms such as slackness and general fatigue combined with numbness and the disappearing of sensations.

Guwei (flaccidity due to a deficiency of kidney-essence): one type of flaccidity has signs such as difficulty standing due to pain in the back and loins, weakness of the lower extremities and rotting teeth.

1. "It is said in 1he Low Cl.assic that disharmony of the liver combined with excessive sexual intercourse reduces the essence of the kidney and results in jinwei."  You'd  better read The Low Classic carefully.
2. People working in water may be affeted by the wet pemicious influence and have it remain in their bodies. Dad, you'd better take a rest again.
3. "When the wet pemicious influence invades the muscles of those living in a wet environment, it produces numbness which may turn into rouu.ei.  Therefore, it is said in The Low Classic that rouwei is the result of chronically living in wet environment.
4. When one is tired after a long journey in hot weather he gets thirsty which raises the yang qi in the body. Then the heat perucious influences attacks and enters the kidney. 'I'm dying of thirst. Even the wind is scorching.
5.The kidney is characterized by water.  When the water cannot overcome the heat, bones wither and the marrow empties. So the ailment known as guwei (flaccidity due to a deficiency of kidney essence) develops causing weakness of the feet.
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