Second, Late night sleep affects grades worse They sleep late to recognize the slow response. The brain doesn't work fully as a result, there are no concentrate in school, so students do not understand.
Second, sleep affects learning worse. Because of sleep makes the perceived slow response. Brain to malfunction, resulting in not concentrate in school, enabling students do not understand.
Secondly, sleep late affecting learning and worse. Because the sleeping too late to perceived slow response Brain function is not fully has no concentration so students don't understand