Fantasy novels were usually based on magic, fantasy, science fiction, and other elements. The content was often full of imagination and mystery. If one was overly addicted to this type of novel, it might have some negative effects on one's mental and physical health. Overindulging in fantasy novels might cause vision to deteriorate. There were often a lot of descriptions in novels, such as fine character movements, gorgeous pictures, etc., which would cause too much burden on the eyes and lead to vision loss. A large number of magical and technological elements often appeared in fantasy novels. If one did not understand the principles and practical applications, it might have a negative impact on one's scientific literacy. For example, the magic and technology mentioned in the novel may be different from reality. If you don't understand these differences, you may misunderstand real life. Overindulging in fantasy novels may have a negative impact on one's physical and mental health. For example, it might cause people to lose interest in other things and lack understanding and cognition in other fields, thus affecting people's social skills and creativity. In addition, excessive indulgence in fantasy novels may also have negative effects on people's mental health such as anxiety and depression. Therefore, we should read fantasy novels appropriately to maintain our attention and understanding of other fields in order to maintain a healthy physical and mental state.