When the result of going to school late. There are many reasons, it is in every student. That is to slowly finish homework from last night. Make yourself sleep. Sleep is not enough.
When you know the result of going to school. The reason it exists in every student's homework is done since late last night, late night bedroom bed itself is not enough.
When you know the results of the reason to go to school, and then it is a lot of it is that all the students in the making of complete home away from home late last night from his own bed, not getting enough sleep at night