If the children’s body lactic acid is too high, there are often the following clinical symptoms: first of all, manifested as muscle pain, because the increase in lactic acid will stimulate the children’s muscle tissues, resulting in muscle pain and weakness, such as strenuous activities often cause the body lactic acid increase, which manifests itself as body muscle pain, we must give the children appropriate rest. Secondly, cause fatigue, distraction, if the children after the high lactic acid brain often have different degrees of hypoxia, which will be manifested as distraction, lack of concentration, mental state is relatively poor.