After reading the "Sacrifice to Twelve Lang Wen", I have some doubts about the word "soft foot disease" involved in it, and draw the following conclusions by referring to the network data:
One: Working in a working environment with high concentration of n-hexane can cause acute poisoning, mainly manifested as anesthesia and irritation to skin and mucosa. Long-term work in the environment with high concentration of n-hexane can cause multiple peripheral nerve injuries. Mildly, it can be manifested as distal sensory nerve damage, such as symmetrical numbness of fingers and toes, and insensitivity of hands and feet to touch and pain. Motor nerves may be damaged during the development of the disease. At first, I started from the distal end of my lower limbs, and I felt weak when I walked, especially when I went up the stairs. In severe cases, it can lead to muscle atrophy and lower limb paralysis. It is worth noting that the disease can continue to develop after 1-3 months of contact.
Two: walking obstacle and weakness of lower limbs caused by dark and humid environment and lack of vitamins and trace elements.
As for the real cause of Shiro's death, Han Yu doesn't know it, but it is very clear in the article-you wrote last year: "It is often played when the feet are weak." I said, "This is a disease, which is common in Jiangnan people." Before I started, I thought I was worried Oh! It died because of this! Don't come to you when you are sick?