A direct impact on learning It works because our brains to sleep late, do not fully. A slow realization. We do not concentrate in school time. Student's learning skills do not know it is missing.
Direct impact on the working class because of sleep. Our brain does not function fully. Was slow to recognize We can not concentrate during class time. To know Learning skills is missing too.
Directly affect the learning and work because staying up late at night, make our brains work is not full, perceived slow, we concentrate in class time. You don't learn skills achievement are missing.