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[转载] 男性无名指长者性欲强

已有 4013 次阅读 2011-9-8 01:34 |个人分类:科研科普|系统分类:科普集锦|关键词:无名指,性欲强,男性| 男性, 无名指, 性欲强 |文章来源:转载

王应宽 转载
Beijing, China
2011-09-07
 
[博主按]刚在科学网新闻里读到这则信息,觉得很有趣,于是转载于此,同时附上原文+网址链接,作为资料收藏。拟定一个有趣的题名:男性无名指长者性欲强。不由得联想到为何观音菩萨总是笑眯眯的念着“南(男)无阿弥陀佛”!(注:“南无”实际发音为namo) 此文似乎没有交代女性无名指长短与性欲的关系?!回头我再去佛罗里达大学访问时得找研究者问问清楚——找女朋友选无名指长的好还是短的好!
 
 
 
美研究称性欲强弱与无名指长短有关
 
女人想找寻另一半,或许得将男人无名指的长短列入考虑,因为这与男性的性欲有关。据“中央社”报道,美国科学家发现,无名指的长度确实是由子宫内男女性荷尔蒙含量决定。
婴儿接触到愈多男性荷尔蒙睪丸素,无名指就可能愈长。
这项研究首度说明,男性的无名指为何通常比食指长。女性则是相反。
无名指长短以往被认为与精子数量、侵略行为、性倾向及运动细胞有关。而高睪丸素则与性欲较强相关。
佛罗里达大学(University of Florida)生物学家马丁与郑祯贵(音译,Zhengui Zheng)表示,无名指布满性荷尔蒙受体。
研究人员以怀孕老鼠作实验,并且控制影响老鼠雌激素与睪丸素含量的基因,结果显示,睪丸素增加会影响幼鼠后爪第4趾的长度。老鼠的趾头长度比例类似人类手指。
这项研究结果可能有助于了解前列腺癌与乳癌等与荷尔蒙失调有关的疾病。
 
 
 
 
 
 
 
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Categories: Science
 
 
Finally, a pair of Gainesville biologists have discovered another reason for men having ring fingers longer than their index fingers, and as folklore would have it, it's related to sex.

The findings of the University of Florida College of Medicine developmental biologists, Martin Cohn and Zhengui Zheng, add to the long list of things that are said to be determined by the "digit ratio," specifically the "2D:4D" ratio -- which compares the ring and index fingers.

Now, in addition to penis size, athletic ability, and dozens of other traits thought to be indicated by this ratio, the Florida biologists are now adding sex drive to the list.

The researchers found through testing on mice embryos that with more androgen (testosterone) present in a system, the fourth digit is longer, while more estrogen indicates that finger will be shorter.

The male mice subjected to higher levels of estrogen not only lost some length on the fourth digit but it also created a more feminized look in the mice, according to the research.

"The discovery that growth of the developing digits is controlled directly by androgen and estrogen receptor activity confirms that finger proportions are a lifelong signature of our early hormonal milieu," Cohn told the University's news department. "In addition to understanding the basis of one of the more bizarre differences between the sexes, it's exciting to think that our fingers can tell us something about the signals that we were exposed to during a short period of our time in the womb."

Aside from all the sexual implications and the cultural references from the digit ratio, scientists actually think it'll help them understand immune system diseases and how certain cancers work.

In practical terms, you may want to start checking the ratios of men to see what they're all about.

The biologists' research is published in this week's Proceedings of the National Academy of Sciences.

Follow The Pulp on Facebook and on Twitter: @ThePulpBPB. Follow Matthew Hendley on Facebook and on Twitter: @MatthewHendley.
 

Who has longer ring fingers?

 

 



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