In the modern education system, many students have difficulty in focusing and paying attention during classes. I regard lack of sleep and rigidity of traditional learning as the causes of this issue which could be deal with by several feasible measures. Firstly, some students may have poor sleeping habits or an unhealthy lifestyle. For example, they spend too much time surfing the Internet on TikTok, Instagram or playing video games all night long without any outdoor activities like playing sports. This disorder leads to drowsiness and lack of energy because the brain needs time to rest, so it is challenging for them to sit still or pay attention to the teacher's instructions. Secondly, students may be uninspiring as the monotomy and inflexibility of classrooms. Many lectures lack relevance to real life, endorsing a repetitive course of tedious theoretical assignments and lectures while failing to motivate the students with varied content. Therefore, they are easily distracted by more interesting things like conversation with friends or simply feel sleepy and struggle to pay attention to the lecture.