As for Su Zhenxian's illness itself, Lin Feng knew that at the beginning, it should have been just ordinary nerve weakness with a slight sleep disorder, but it developed into something so severe now because someone gave him heavy drugs like rosemary!
The main characteristics of nerve weakness are mental excitement and easy fatigue, sleep disorders, memory decline, headaches, and various physical discomforts, which basically match Old Su's current symptoms. However, if it were purely nerve weakness, as long as a good sleep and diet habit is maintained, along with a certain amount of exercise, it can still be easily controlled!
But for Su Zhenxian to have the illness dragged on to be so serious, even to the point of being unable to sleep, that's all due to the effects of rosemary!
