If you feel physically and mentally exhausted after reading a novel, it might be because the plot of the novel is too tense or fascinating, resulting in physical and mental fatigue. In this case, you can try to relax and do something to soothe your body and mind, such as: Take a break and do some stretching exercises or take a deep breath to relax your body. 2 Drink some tea or coffee to relieve your fatigue. 3 Listen to music or watch a movie to relax. 4. Chat with friends or family to share your feelings. He could also try to change the way he read novels and choose some relaxed and interesting novels so that he wouldn't feel so tired when reading novels.