高强度摄食肉类可使月经初潮提早
文章来源:未知 文章作者:meng 发布时间:2010-06-11 07:06 字体: [ ]  进入论坛
(单词翻译:双击或拖选)

Girls who eat a lot of meat during childhood tend to start their periods earlier than others, a study suggests.

一项研究显示,童年时期进食大量肉类的女孩似乎月经来潮比其他人要早。

Eating a lot of meat may promote good conditions for <a href=pregnancy1" width="226" height="170" src="/upimg/100611/4_072246_1.jpg" />
Eating a lot of meat may promote good conditions for pregnancy

UK researchers compared the diets of more than 3,000 12-year-old girls.

They found high meat consumption at age three (over eight portions a week) and age seven (12 portions) was strongly linked with early periods.

Writing in Public Health Nutrition, the researchers said a meat-rich diet might prepare the body for pregnancy, triggering an earlier puberty(青春期,开花期) .

During the 20th Century, the average age at which girls started their periods fell fairly dramatically, although it now seems to be levelling off.

This is widely thought to be due to better nutrition(营养) and rising levels of obesity2(肥胖) , which has an impact on hormones3.

In the latest study, the team used data from a group of children followed from birth.

At the age of 12 years eight months, they split the girls into those who had already started their periods and those who had not.

Comparing their diets at the ages of three, seven and 10, they found that meat intake4(摄入) at a young age was strongly linked with earlier periods.

In fact, at age seven there was a 75% increased chance of having a period by age 12 in those eating the most meat compared with those who ate the least.

Although this finding was independent of body weight, the study repeated previous research showing that bigger girls tend to menstruate(月经来潮) early.



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1 pregnancy lPwxP     
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 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。
3 hormones hormones     
n. 荷尔蒙,激素 名词hormone的复数形式
参考例句:
  • 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。
  • The adrenals produce a large per cent of a man's sex hormones. 肾上腺分泌人体的大部分性激素。
4 intake 44cyQ     
n.吸入,纳入;进气口,入口
参考例句:
  • Reduce your salt intake.减少盐的摄入量。
  • There was a horrified intake of breath from every child.所有的孩子都害怕地倒抽了一口凉气。
TAG标签: girls meat periods
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