我国学生近年来体格发育的全方位迅猛增长,尤其通过和日本学生身高比较所展现的巨大变化让人欣喜(编者注:见作者在本期发表的另3篇文章)。虽然个体的身材并非越高大越好,但从群体角度看,这些正向变化客观反映出社会经济的进步,生活水平的提高,遗传生长潜力正在全面释放。不过,生长长期趋势作为复杂的生物现象,有鲜明的“双刃剑”效应:既有积极效应,也带来消极影响。半个世纪来,人们的生活环境出现许多深刻变化,如生活方式和膳食结构的改变,“肥胖易感 In recent years our students have witnessed an all-round growth of physical development in all respects, especially through the great changes shown in comparison with the height of Japanese students (Editor’s Note: See the author’s other three articles published in this issue). Although the individual’s body is not bigger and better, from a group perspective, these positive changes objectively reflect the social and economic progress, living standards and the potential for genetic growth are being fully released. However, the long-term trend of growth as a complex biological phenomenon has a distinct ”double-edged sword“ effect: it has both positive and negative effects. For half a century, there have been many profound changes in people’s living environment, such as changes in lifestyle and dietary structure, ”" susceptibility to obesity