该研究发现，只有2%的儿童骑车或步行上学，与40年前60%相比下降很多。
Popkin
While the statistics are not encouraging, Popkin offers a solution. "We need to realize that being physically active has benefits to us beyond the issues of weight. Being physically active is very important for our development and our aging and those who are active in the childhood and adulthood." …
而数据显示并不容乐观，Popkin提供了一种解决方案。 “我们必须意识到，运动给我们带来的益处不只是体重的问题。锻炼身体对我们的发育和成熟都十分重要，对那些在孩童时和成年时就积极锻炼的人也非常重要。” “如果妇女们在她们年轻的时候就爱运动并且积极锻炼，她们得骨质疏松症的可能性就小。而且，无论男女，这都对他们…