成人应当通过婴儿日常生活的种种表现来识别各种常见病和传染病的先兆,以达到及早诊断和治疗的目的。情绪变化健康的小儿在吃饱和睡好的前提下,总是保持良好的情绪,满面笑容,神采奕奕,双手高兴地上下挥舞,注意观察周围的人物,对成人的哄逗、搂抱等语言、动作,能根据自己的喜恶作出相应的反应,对新奇的玩具表现出良好的兴趣等等。若是与此相反,小 Adults should identify the precursors of various common and infectious diseases through the various manifestations of their daily life so as to achieve the purpose of early diagnosis and treatment. Emotional changes in healthy children under the premise of eating and sleeping well, always maintain a good mood, smiling, energetic, hands up and down happy to wave, pay attention to observe the characters around, adult coaxing, cuddling and other languages, Action, according to their own likes and dislikes to respond accordingly, the novelty of the toy showed good interest and so on. If this is the opposite, small