"We can now be more focused in our examination of the links between digit ratio and sex-dependent behaviors, diseases of the immune system, cardiovascular disorders and a number of cancers. With women, it tends to be the reverse: their index fingers are usually longer. ScienceDaily… Get your answers by asking now.Man raising money to pay mom's rent left speechlessActor to Trump: 'Where is the federal relief for Iowa?' Why men's ring fingers are longer than their index fingers: Male-female ring finger proportions tied to sex hormones in embryo. "I've been struggling to understand this trait since 1998," said John T. Manning, Ph.D., a professor at Swansea University in the United Kingdom, who was not involved in the current research.
"When Zheng and Cohn blocked testosterone receptors, they got a female digit ratio," Manning said. Why men's ring fingers are longer than their index fingers: Male-female ring finger proportions tied to sex hormones in embryo.
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Biologists at the University of Florida have found a reason why men's ring fingers are generally longer than their index fingers -- and why the reverse usually holds true for women.The finding could help medical professionals understand the origin of behavior and disease, which may be useful for customizing treatments or assessing risks in context with specific medical conditions.The discovery provides a genetic explanation for a raft of studies that link finger proportions with traits ranging from sperm counts, aggression, musical ability, sexual orientation and sports prowess, to health problems such as autism, depression, heart attack and breast cancer.It has long been suspected that the digit ratio is influenced by sex hormones, but until now direct experimental evidence was lacking.
"He suggested that the 2D:4D ratio would be an interesting question, and I have to admit to being skeptical," Cohn said.
There was this experiment among volunteer when they were in hospital that when they were under anesthetic the vast majority of the men who had a larger ring finger also had a larger penis than the men whose index finger was larger than the ring finger., interesting situation, of course there are exceptions to any rules, but very interesting to know.It's been proven that it has something to do with your mothers testosterone level while pregnate. As it turns out, the length of your ring finger indicates the amount of testosterone you were exposed to in the womb.
"When he came back with the initial results, I was blown away. (2011, September 6). Scientists have long noticed that men’s ring fingers are generally longer than their index fingers. "Cohn, whose uses the tools of genetics, genomics and molecular biology to study limb development, said his lab began studying the digit ratios after Zheng became determined to find an explanation. The longer or shorter it is, the more telling. "Why men's ring fingers are longer than their index fingers: Male-female ring finger proportions tied to sex hormones in embryo." In many cultures, a proportionally longer ring finger in men has been taken as a sign of fertility. ScienceDaily, 6 September 2011. ScienceDaily shares links with scholarly publications in the Content on this website is for information only. By following the prenatal development of the limb buds of mice, which have a digit length ratio similar to humans, the scientists controlled the gene signaling effects of androgen -- also known as testosterone -- and estrogen.Essentially, more androgen equated to a proportionally longer fourth digit. I am straight and my ring finger is longer than my index on one hand and the identical as my index on the other. Scientists have long noticed that men’s ring fingers are generally longer than their index fingers.
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