When a person was sick and in a bad mood, it was best to read books that could divert their attention and relieve stress. 1. Self-help books: These books will guide readers to think about how to deal with the various challenges in life and develop their own decision-making skills and problem solving skills. When the reader was sick, these books could help the reader distract themselves and make their thoughts clearer so that they could better cope with the illness. 2. Fictional books: Fictions are a way for readers to enter the fictional world and experience the emotions and experiences of different characters. Reading some novels when you were sick could relax your body and mind and reduce stress. At the same time, it could also immerse yourself in fictional stories and forget your troubles. 3. Poetry books: Poetry is a way to express emotions and thoughts using language as a tool. Reading poetry could let the readers feel the beauty of the language and the richness of emotions, thus easing their mood. In short, reading different types of books had their own benefits. The specific type of books to choose depended on personal preferences and actual circumstances.