运动休闲－女性怀孕期间压力过大会导致流产

During early pregnancy¹, miscarriage² may be more likely among women with high levels of the stress hormone³ cortisol, according to a study published online in the Proceedings⁴ of the National Academy of Sciences .

Maternal⁵ stress is often considered a risk factor for miscarriage, yet data supporting this association are lacking, noted⁶ lead author Dr. Pablo A. Nepomnaschy, from the National Institutes of Health (NIH) in Research Triangle Park, North Carolina.

The NIH team evaluated 61 women aged⁷ 18-34 over 12 months in a small community in rural Guatemala, collecting each woman's urine three times a week to check for pregnancy status and levels of cortisol, a stress-linked hormone.

Over the year, 16 of the women had 22 pregnancies⁸. Nine pregnancies were carried to term and 13 were lost. Among the findings:

—Miscarriages were 2.7 times more likely among women with increased cortisol levels.

—Miscarriages happened after an average of about two weeks of pregnancy.

—90 percent of women with high cortisol levels miscarried in the first three weeks of pregnancy.

—33 percent of women with normal cortisol levels miscarried in the first three weeks of pregnancy.

Dr. Nepomnaschy said it's unclear why a boost in cortisol might raise miscarriage risks, but he offered a hypothesis that "the body might interpret that as conditions deteriorating⁹, and maybe that might trigger an abortion¹⁰ mechanism¹¹."

"Try to provide yourself with what you consider a good environment. The less stress, the better," he suggested.

重点词汇

miscarriage  n. 流产         maternal  a. 母亲的，母性的

1 pregnancy   

n.怀孕，怀孕期

参考例句：

• Early pregnancy is often accompanied by nausea.怀孕早期常有恶心的现象。
• Smoking during pregnancy increases the risk of miscarriage.怀孕期吸烟会增加流产的危险。

2 miscarriage   

n.失败，未达到预期的结果；流产

参考例句：

• The miscarriage of our plans was a great blow.计划的失败给我们以巨大的打击。
• Women who smoke are more to have a miscarriage.女性吸烟者更容易流产。

3 hormone   

n.荷尔蒙，激素，内分泌

参考例句：

• Hormone implants are used as growth boosters.激素植入物被用作生长辅助剂。
• This hormone interacts closely with other hormones in the body.这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。

4 proceedings   

n.进程，过程，议程；诉讼(程序)；公报

参考例句：

• He was released on bail pending committal proceedings. 他交保获释正在候审。
• to initiate legal proceedings against sb 对某人提起诉讼

5 maternal   

adj.母亲的，母亲般的，母系的，母方的

参考例句：

• He is my maternal uncle.他是我舅舅。
• The sight of the hopeless little boy aroused her maternal instincts.那个绝望的小男孩的模样唤起了她的母性。

6 noted   

adj.著名的，知名的

参考例句：

• The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。
• Jim is noted for arriving late for work.吉姆上班迟到出了名。

7 aged   

adj.年老的，陈年的

参考例句：

• He had put on weight and aged a little.他胖了，也老点了。
• He is aged,but his memory is still good.他已年老，然而记忆力还好。

8 pregnancies   

怀孕，妊娠( pregnancy的名词复数 )

参考例句：

• Since the wartime population needed replenishment, pregnancies were a good sign. 最后一桩倒不失为好现象，战时人口正该补充。
• She's had three pregnancies in four years. 她在四年中怀孕叁次。

9 deteriorating   

恶化，变坏( deteriorate的现在分词 )

参考例句：

• The weather conditions are deteriorating. 天气变得越来越糟。
• I was well aware of the bad morale and the deteriorating factories. 我很清楚，大家情绪低落，各个工厂越搞越坏。

10 abortion   

n.流产，堕胎

参考例句：

• She had an abortion at the women's health clinic.她在妇女保健医院做了流产手术。
• A number of considerations have led her to have a wilful abortion.多种考虑使她执意堕胎。

11 mechanism   

n.机械装置；机构，结构

参考例句：

• The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。
• The mechanism of the machine is very complicated.这台机器的结构是非常复杂的。