Recently, Generic_School school board is considering to add one and a half hour to school each day due to students do not have enough time to study at school. However, many students and parents disagree with extending the school day. In fact, adding more time has many disadvantages instead of advantages like the school's expectation. For instance, students at Generic_School are going to have less time for school's clubs and their program at high school, or students will be tired and may not study effectively. In addition, this change could take away their free time after school. Therefore, I am not an exception of the population who strongly disagree with extending the school day.  First of all, students at Generic_School have limited school time because teenagers are not able to go home lately for their safety and privacy. Although they do not have much time, most of them are joining clubs or doing high school's activities. Due to this limited time at school, if Generic_School decides to make students spend more time at school, they will not have enough time for after school programs. In fact, joining social club and doing sport are some beneficial ways for school life, so students should not quit them. Therefore, adding more time could ruin hose beneficial activities for students. For example, Generic_Name must at his house at seven in the afternoon, so he has about three hours to do his sport program at high school. But then, his school requires him to stay for ninety more minutes. After that, he just has one and a half hour for his after school activity, which is a little amount of time.  In additionally, adding more time to school each day may cause students the lack of attention to their teachers. Studying for a long time definitely will make students become tired. Recording to scientists, it is more difficult for people to be focus when they are tired because their brain may not evaluate the information very well. For this reason, they may not be focus in class and receive brilliant knowledge for test. Students also may not solve their homework and prepare for the next class because they do not understand their lesson. And because of the tiring students, teachers could not teach them effectively too. Consequently, this problem is going to affect their grade. If this horrible problem lasts for a long time, studying will be stressful for those teenagers.  Another reason to consider, extending more time causes the scarcity of free time for students. To date, students just have six hours after school until the perfect time for them to sleep. Which is not a large amount of time to discover something new to do and avoid their days become monotonous. However, after this change, students will only have four hours for their free time. This change absolutely will take away their time for hobbies, family, and time to relax. With four hours, students are just able to have dinner, do their homework, and prepare for test. They do not have time for anything else.  In conclusion, the lack amount of time for after school program, scarcity of attention to classes, and less free time are some valuable reasons make I strongly disagree with extending the school day. This option makes school life become more stressful and causes many consequences. Studying should be b