Babies born via c-section are more likely to become obese1 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.

For the study, researchers observed 34 mice that were delivered by c-section and 35 mice that were born naturally.

They tracked their body weights and analyzed2 their intestinal3 bacteria until the mice had grown into adults.

Mice that were born via a c-section put on about 30 percent more weight than their counterparts who’d had a natural birth.

Females, specifically, who had been delivered by c-section had gained a staggering 70 percent more weight than the mice born vaginally.

The drastic increase is credited to a difference in the bacteria found in the stomachs of the two groups of mice.

The microbiome, which houses such bacteria, in mice born vaginally progressed normally throughout the course of the study.

However, that of mice born by c-section, matured too quickly at first and then regressed later in their lives.

The research team said that c-sections, while critical in about 15 percent of births, are widely overused, citing that 50 percent of births in Brazil, Iran and the Dominican Republic are performed via the operation.

They are hopeful that their work will curb4 unnecessary cesareans and bring down the growing obesity5 rate in the US.

英语网址大全

1 obese uvIya
adj.过度肥胖的，肥大的
参考例句：
The old man is really obese,it can’t be healthy.那位老人确实过于肥胖了，不能算是健康。
Being obese and lazy is dangerous to health.又胖又懒危害健康。
2 analyzed 483f1acae53789fbee273a644fdcda80
v.分析( analyze的过去式和过去分词 )；分解；解释；对…进行心理分析
参考例句：
The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。 来自《简明英汉词典》
3 intestinal DbHzX
adj.肠的；肠壁；肠道细菌
参考例句：
A few other conditions are in high intestinal obstruction. 其它少数情况是高位肠梗阻。 来自辞典例句
This complication has occasionally occurred following the use of intestinal antiseptics. 这种并发症偶而发生在使用肠道抗菌剂上。 来自辞典例句
4 curb LmRyy
n.场外证券市场，场外交易；vt.制止，抑制
参考例句：
I could not curb my anger.我按捺不住我的愤怒。
You must curb your daughter when you are in church.你在教堂时必须管住你的女儿。
5 obesity Dv1ya
n.肥胖，肥大
参考例句：
One effect of overeating may be obesity.吃得过多能导致肥胖。
Sugar and fat can more easily lead to obesity than some other foods.糖和脂肪比其他食物更容易导致肥胖。

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