A person in the Song

In the summer of the fourth month of the third year of Emperor Yingzong's reign, in the Houge of Zichen Palace.,"Yan Shu was very intelligent, perhaps he could find a way.",“He was in a coma. The imperial physician said it was blood stasis, with blood vessels in the brain clogged and stagnant. He had woken up for a while, but after regaining consciousness, he found himself blind. Terrified, he fainted again quickly. It is likely that this was caused by the blockage of blood vessels.”。