Relationship between lifestyle and stress in preschool children

本研究旨在探讨学龄前儿童生活型态与压力的关系。应激的标志物是唾液中的分泌型免疫球蛋白A（s-IgA）。研究对象为175名4 ~ 5岁学龄前儿童。获得了以下结果。s-IgA有昼夜节律，即在清醒后达到最高水平。早睡早起的儿童s-IgA水平高于晚睡晚起的儿童。提示早睡早起的生活方式对减轻学龄前儿童的应激反应和提高免疫力有一定作用。

The purpose of this study is to examine the relationship of lifestyle and stress of preschool children. The marker for the stress was the secretory-Immunogloblin A (s-IgA) in saliva. Subjects were 175 preschool children aged 4 to 5 years. The following results were obtained. The circadian rhythm of the s-IgA was found. The s-IgA showed the highest level just after wakeup. The children who sleep earlier and wake up earlier have higher s-IgA than the children who sleep and wake up later. It was suggested that the lifestyle of early bedtime and early wakeup is effective for reducing the stress and improving the immunity in preschool children, by the s-IgA marker.