手机APP下载

您现在的位置: 首页 > 在线广播 > 科学美国人 > 科学美国人科学系列 > 正文

科学美国人60秒:假日狂欢使出生率激增

来源:可可英语 编辑:aimee   VIP免费外教试听课 |  可可官方微信:ikekenet
 下载MP3到电脑  批量下载MP3和LRC到手机
加载中..
X)#ze#R%bd3dF-

HP_f7AasvjwRw%U

This is Scientific American — 60-Second Science. I'm Karen Hopkin.
In the United States, there's a holiday that goes hand in hand with romance...so much so that nine months later, there's a spike in the number of babies born. Valentine's day? Wrong! It seems that people in the U.S. and in other predominantly Christian countries have been having some very merry Christmases indeed. That's according to a study in the journal Scientific Reports.
Scientists have long wondered why, in Western countries, birth rates spike in September and early October.
"The prevailing hypothesis for this phenomenon postulates that there is a biological adaptation to the solar cycles."
Luis Rocha of Indiana University co-led the study. He notes that nine months before this baby boomlet is the winter solstice. And when the days grow shorter and the night grows long, well, humans seem to turn to procreation for recreation.
"However this hypothesis was built on observations pretty much restricted to northern hemisphere countries and also culturally Christian countries."
And some data suggested there might be something cultural going on.
"So for instance in Israel, it was previously observed that communities associated with different religions have birth peaks at different times of the year."
To try to separate the cultural from the biological, Rocha teamed up with Joana Gonçalves-Sá of the Gulbenkian Institute of Science in Portugal. Together, they combed through data on a planetary level...comparing countries in the Northern and Southern hemispheres...and countries with predominantly different cultures, in this case Christian and Muslim.

Bk)I]yQFcw#

新生儿.jpg
But they didn't look at when babies are born. They looked to see when, during the year, people around the world Google the word "sex". Joana Sá:
"What we found, first, was that Google...searches for sex on google...are a very good proxy for sexual appetite and sexual, offline sexual interest. And when we looked at close to 130 countries around the world, what we saw is that each country has a particular signature with peaks and valleys of interest in sexual content."
Sá says that those patterns were most similar for countries that shared a similar culture...
"This means that if you live in a culturally Christian country, whether you live in the northern hemisphere or the southern hemisphere, you are more likely to have an increase in sexual appetite around Christmas. But if you live in a Muslim country, you are much more likely to conceive around Eid-Al-Fitr, than at a different, at another time of the year."
Now, if you're still wondering what's so special about these holidays...Rocha says interest in sex coincides with a particular mood...a finding he made with the help of Twitter.
"We collected close to 50 billion tweets and showed that, independently of the geography and independently of the particular culture, when we observed the surge of interest in sex we also observe the appearance of a particular mood that can best be classified as calm and happy and de-stressed mood that is maximized around Christmas for Christian countries and maximized at the end of Ramadan with Eid for Muslim countries."
All of which makes the following year's holiday family gathering just a little bit bigger.
Thanks for listening for Scientific American — 60-Second Science. I'm Karen Hopkin.

KF[)@7Hy^H@|^2#ZIm[

P%WPP4mz[VJbi|Ph

yY38D9,76C0vrI,ZOE#O]Y4xQ19N5ut8.|FDlL@+56szvAsg+

重点单词   查看全部解释    
prevailing [pri'veiliŋ]

想一想再看

adj. 盛行很广的,一般的,最普通的

联想记忆
X
单词prevailing 联想记忆:
pre优先+ail强壮+ing→比…强大→占优势的
 
evidence ['evidəns]

想一想再看

n. 根据,证据
v. 证实,证明

联想记忆
X
单词evidence 联想记忆:
e出+vid看+ence→[明显的证据]证据,证人
 
appearance [ə'piərəns]

想一想再看

n. 外表,外貌,出现,出场,露面

联想记忆
X
单词appearance 联想记忆:
appear出现+ance表名词,“性质,状况”→出现;外表
 
adaptation [.ædæp'teiʃən]

想一想再看

n. 改编,改编成的作品,适应

联想记忆
X
单词adaptation 联想记忆:
adapt适应,能力+ation→适应→适应〔各种人〕的书→改写本
 
phenomenon [fi'nɔminən]

想一想再看

n. 现象,迹象,(稀有)事件

联想记忆
X
单词phenomenon 联想记忆:
phen显示+omen预兆+on→显示预兆→现象
 
institute ['institju:t]

想一想再看

n. 学会,学院,协会
vt. 创立,开始,制

联想记忆
X
单词institute 联想记忆:
in进入,stitute站,建立-站进去;进入建立的状态-创立
 
previously ['pri:vju:sli]

想一想再看

adv. 先前,在此之前

 
particular [pə'tikjulə]

想一想再看

adj. 特殊的,特别的,特定的,挑剔的
n.

联想记忆
X
单词particular 联想记忆:
part部分+icuar有…的→有自己的部分→特别的;各自的
 
coincide [.kəuin'said]

想一想再看

vi. 同时发生,符合,一致

联想记忆
X
单词coincide 联想记忆:
co共同,incide=inside里面-共同进入到一个学校里面-巧合coin incide:硬币掉在苹果汁里-巧合
 
planetary ['plænitəri]

想一想再看

adj. 行星的,有轨道的

 

发布评论我来说2句

    英语学习推荐

    科学美国人60秒

    可可英语官方微信(微信号:ikekenet)

    每天向大家推送短小精悍的英语学习资料.

    添加方式1.扫描上方可可官方微信二维码。
    添加方式2.搜索微信号ikekenet添加即可。