求翻译：大学生一般都是静坐在教室、实验室、自习室，低头弯腰学习与工作的，长期处于这种姿势，又不参加身体锻炼，往往会引起各种疾病。因此，大学生要经常参加身体锻炼，因为身体锻炼可以使心脏和胃肠都得到良好的锻炼，使大学生精力充沛，同时，身体锻炼还是一种积极性休息，脑细胞各有分工，进行身体锻炼时，管理肌肉活动的精神细胞处于兴奋状态，而思考问题的神经细胞则处于抑制状态，得到很好的积极性休息。是什么意思？

Students generally sit in the classroom, laboratory, study room, bow down to learn and work, long-term in such a position, not to participate in physical exercise, often lead to various diseases. Therefore, students should regularly participate in physical exercise, as physical exercise can make the

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College students generally sit in classrooms and laboratories, study hall, bow their heads bent to study and work, long in this position, without taking part in physical training, tends to cause various diseases. Therefore, students often take part in physical exercise, because physical activity can

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