In general, girls are emotionally unstable during the menstrual period and are prone to impatience and impulsivity. This aspect is due to the effects of the neuroendocrine system during menstruation. On the other hand, some girls lack a correct understanding of menstruation and are influenced by parents and big classmates. They think that it is a painful and unfortunate thing to have a lifetime. Every time menstrual cramps, such as serious illness, this kind of bad psychological suggestion, causing the girl's spirit is very tense, the "?" in the mind is heavy, resulting in impulsive or depression, fear and other uneasiness. Often a little bit of a psychological unpleasant, tempered, sometimes unable to control their impulses and speak polite enough, bitter and harsh, hurt the friendship between classmates and good friends. Even for their parents and elders, they have a small temper and a dispute. Some girls have left home and left their parents and teachers sad and worried. During menstruation, you must use a variety of methods to adjust your body and mind. For example, you should actively participate in the group's cultural activities. Read more healthy literature and magazines during your spare time, and watch movies and TV works without affecting your learning. Good friends talk to intimate topics, participate in appropriate sports activities, etc., keep their emotions stable, and have a good mood, so as not to cause misunderstanding among the students, and avoid the parents' sadness. During menstruation, girls feel more fatigue, drowsiness, body laziness, physical decline, and many women have a series of general discomfort symptoms before or during menstruation. It is like a backache, a belly drop, breast pain, and thinking. Some manifestations of insomnia, excitement can not fall asleep or inattention during class, loss of appetite, feeling hot in the heart, susceptible to a cold and so on. These are normal phenomena. This is due to the cyclical changes in the physical strength of girls. Eight or nine days before the menstrual cramps, physical strength gradually increased until the first to third days before menstruation, physical strength reached a peak; after menstruation, physical strength dropped sharply. After the end of menstruation, physical strength gradually returned to the usual level until the next menstrual period. Therefore, female middle school students and friends should not be overworked during the menstrual period. It is necessary to combine work and rest, and proper rest can ensure better study.