The teacher of Qining Education concluded: But now students study a lot and often feel dizzy, and the learning efficiency will continue to decline because of the extension of learning time. These are all manifestations of brain hypoxia, which are often ignored by parents and teachers. Students should arrange appropriate outdoor sports, walks, etc. In the process of long-term brain use, adjust the hypoxia situation in time. Conditional candidates can use special liquid oxygen to supplement oxyrich instead of protein, and it will be very helpful to supplement vitamins.