Why did Lu Xun become a famous writer and why did his father fall ill? Why did people get sick?

Lu Xun became a famous writer because his literary works deeply reflected the various problems of Chinese society at that time, with a high degree of ideology and artistry. His representative works, including the novel "Madman's Diary","The True Story of Ah Q","New Stories" and so on, were widely praised and influenced. The reason for his father's illness could be due to many factors, including genetics, environmental factors, lifestyle, and so on. A person's health was affected by many factors, including genetics, environment, diet, exercise, and so on. If people don't pay attention to maintaining healthy habits and lifestyle, it may lead to health problems. For example, unhealthy behaviors such as smoking, drinking, and lack of exercise increase the risk of people suffering from cardiovascular diseases, cancer, and other diseases.