In addition to registering swedish four - year - olds " height and weight development , pediatricians will be asked to survey their bmi , which measures the relative percentages of fat and muscle mass in the body by dividing weight in kilos by height in meters and which is considered the best index for obesity 该指数是将一个人的体重kg除以身高m的平方所得到的数值，它可以反映出脂肪和肌肉在人体内所占比例的大小。该指数一直被认为是判断一个人肥胖与否的最佳指标。
While it ' s good to have a powerful distraction for children getting painful medical procedures , it is also troubling " because we have demonstrated the excessive power of television , " said chief author , carlo bellieni , a father of three and a neonatologist and pediatrician at the university of siena in italy 对接受痛苦的医学治疗的孩子们来说，虽然有一个强大的分心物是很好的，但是这同样也挺麻烦。身为三个孩子之父的意大利锡耶纳大学新生儿学专家儿科医生，也是主要著作人的卡罗.伯利尼说道： “因为我们已经证明电视有过度的影响力。 ”
