Students will work better with peers, will have less classroom disruptions, and will have less behavior consequences from teachers. page. The. 49) It is obvious from this evidence that being in a good mood is key to students having a successful day at school. This proves that school should start later because of the direct improvements sleep has on student moods. Having a better mood and therefore a more focused day, will improve student academics. The mental impact of improved memory retention and moods for students is just one reason why schools need to lower the start time. In addition, schools should start later because of the physical impacts this has on student academics. Physical impacts are seen when students’ lack of sleep causes immune system issues. “The weak immune system can cause your body to easily catch an illness, such as the common cold or flu.” (Why School Should Start Later, page). 47) This evidence shows that students need to get enough sleep for their body and health, and if they do not get the sleep needed then negative effects can