4月,天气越来越暖和。不知为什么,下午小土豆和不少同学都忍不住打瞌睡。恰巧身为医生的韩叔叔周末来小土豆家做客,就给他解答了问题。韩叔叔说大家很可能是春困,春困是季节交替给人带来生理变化的一种反应。怎么调节?教室内保持空气流通,减少室内二氧化碳含量,保持光线充足;下课后,大家多活动,到室外看看蓝天和白云、听听歌、用冷水洗脸、闻清凉油和花露水等。不过,有些人“春困”是患病 In April, the weather is getting warmer and warmer. I do not know why, afternoon potatoes and many students could not help but dozing off. Han uncle happened to be a doctor on the weekend to visit a small potato guest, gave him to answer the question. Uncle Han said everyone is likely to be trapped in spring, spring sleepy season is a physiological response to bring people a change. How to adjust? Classroom to maintain air circulation, reducing indoor carbon dioxide levels, to maintain adequate light; After class, we more activities, to the outdoor look at the blue sky and white clouds, listen to songs, wash with cold water, smell cool oil and toilet water. However, some people are “sick”