据调查,现在有不少孩子在放学回家后,常常对父母说:“累得不想动弹了”。这里所说的“累”是孩子在紧张学习之后产生的一种疲劳感,而这种疲劳,有的是属于生理性疲劳,有的则属于心理上的疲劳。生理性疲劳,一般是由于生理上的超负荷而引起的。比如,孩子参加了一些消耗体力的劳动,或参加了一场足球赛,都会使平时缺乏锻炼的孩子感到疲劳。不过,由于孩子们精力旺盛,能在短暂的较充分的休息之后,很快消除疲劳、恢复体力。 According to the survey, many children now often say to their parents after returning home from school: “I do not want to move ”. As used herein, “tired” is a kind of fatigue produced by a child after a tense study. Such fatigue is physical fatigue, while others are psychological fatigue. Physiological fatigue, usually due to physical overload caused. For example, children engaged in a number of physical labor, or participated in a football match, will make the usual lack of exercise tired children. However, due to the energetic children, fatigue and physical strength can be quickly relieved after a brief period of more adequate rest.