Ideally, pregnant women should do everything they can to have a full term pregnancy, because babies born even a few weeks early risk being less healthy and possibly suffering from long term disabilities. So what can moms to be do to keep their babies inside for as long as possible? Healthy eating and avoiding stress are common- sense tips. But less well known is that pregnant women may want to avoid spending too much time near freeways and busy intersections. Why? Because according to many studies over the past decade, mothers living near high traffic areas are more likely to give birth prematurely.
理想的情况下，孕妇应做的一切，他们可以有一个完整的足月妊娠，因为出生的婴儿甚至几周不太健康和长期残疾可能患早期风险。可妈妈要尽可能长时间保持他们的婴儿里面吗？健康饮食和避免紧张是常识性的提示。但少为人知的是，孕妇要避免花费太多时间，高速公路和繁忙的十字路口附近。为什么呢？因为根据许多研究在过去十年中，生活在高流量区域附近的母亲更容易早产。

full term pregnancy 满期妊娠