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为 什么 夏季儿童 食欲差 许多儿童在炎热的 夏天常常吃得很少,饭量明显下降; 但一到冬秋季,饭量又逐渐增加,您知 道这是为什么吗? 夏季温度高,人体通过出汗将体内的热散发出去, 以达到调节体温的作用。皮肤在散热时,皮肤血管处于扩张 状态,血液流经皮下较多,而胃、肠道等内脏器官的血液供应相对 减少,胃肠道活动和消化液分泌随之稍减,所以食欲降低。再加上闷热的天气,使小儿休息和睡眠欠佳,神经中枢处于紧张的状态,体内某些内分泌腺
Why summer children with poor appetite Many children often eat very little in the hot summer, appetite decreased significantly; but as soon as winter and autumn, appetite and gradually increased, do you know why? Summer high temperature, the body sweat will be the body Heat out, in order to achieve the role of regulating body temperature. When the skin is in heat dissipation, the skin blood vessels are in an expanded state, blood flows through the skin more, and the blood supply to the visceral organs such as the stomach and the intestine is relatively reduced. Gastrointestinal activity and secretion of digestive juice are reduced accordingly, so the appetite is reduced. Coupled with the hot weather, so that children with poor rest and sleep, nervous center in a state of tension, the body of some endocrine glands