Topic on discussion of impediment (Bi) diseases in the plain question (Forty-third article part II)

The Emperor asked: "What are the five kinds of impediment (Bi) diseases?”

Qi Bo answered: "Encountering the three evils in winter induces bone impediment (Bi); encountering them in spring induces sinew impediment (Bi); encountering them in summer induces blood vessel impediment (Bi); encountering them in late summer induces flesh impediment (Bi); encountering them in autumn induces skin impediment (Bi)."

Key words: discussion of impediment diseases, in the plain question