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

The Emperor asked: “How does impediment (Bi) disease occur?”

Qi Bo answered: “The wind, cold and damp evils come and mix to induce impediment (Bi) diseases. When the wind prevails, it is mobile impediment.  When the cold prevails, it is aching impediment. When the dampness prevails, it is fixed impediment.”

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