纽约大学的一项研究发现，小鼠实验表明，与自然分娩相比，剖腹产可能更易导致孩子肥胖，而这可能是肠道菌群惹的祸。
Babies born via c-section are more likely to become obese than those born naturally, a study has revealed.
一项研究显示，通过剖腹产出生的婴儿比顺产出生的婴儿更容易出现肥胖问题。
Research from New York University found that mice born via a c-section are more likely to have an unbalanced amount of good and bad bacteria in their stomachs, which puts them at risk for gaining too much weight.
纽约大学的研究发现，剖腹产出生的小鼠胃里的有益细菌和有害细菌数量更容易出现不平衡，从而增加它们超重的风险。
For the study, researchers observed 34 mice that were delivered by c-section and 35 mice that were born naturally.
在这项研究中，研究人员对34只剖腹产出生的小鼠和35只自然分娩出生的小鼠进行观察。
They tracked their body weights and analyzed their intestinal bacteria until the mice had grown into adults.
研究人员持续追踪小鼠成年前的体重，并分析它们的肠道细菌。
科普：
The human gut has more bacteria than any other part of the body, both in number and diversity.
无论从数量还是种类上，肠道都是人体器官中拥有细菌最多的地方。
There are four major types of gut bacteria: Firmicutes, Bacteroidetes, Actinobacteria and Proteobacteria.
肠道细菌主要分为四种：厚壁菌门、拟杆菌门、放线菌门和变形菌门。
Firmicutes play a role in energy re-absorption, and may be linked to diabetes and obesity.
厚壁菌门的作用是重新吸收能量，它可能与糖尿病和肥胖症相关。
Bacteroidetes account for 30 percent of all gut bacteria, and are important to our ability to digest and use energy from carbohydrates and sugars.
拟杆菌门的数量占所有肠道菌细菌的30%，对人们消化、利用碳水化合物以及糖类中的能量至关重要。
Acinobacteria produce bioactive metabolites, which we use in medicines like antibacterials.
放线菌门能产生活性代谢物，这是抗菌药等药物中含有的成分。
Proteobacteria are a category of bacteria that include diseases like chlamydia, but exist in healthy guts.
变形菌门中包含沙眼衣原体等病菌，这类细菌也存在于健康的肠道内。
