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How feminine are you: What the length of your fingers can tell you about yourself....

In women, the index and ring finger are roughly equal in length. But in most men, the ring finger is longer. That's a result of fetal exposure to testosterone.

My 13 year old nephew, while staying with us over the summer, brought up a fact that he had heard and then read about. Apparently, he purported, the length of ones index finger as compared to ones ring finger could differentiate most men from most women. This has been well documented over the years but I had not been aware of the full details as I saw in this particular study. You can imagine how perplexed and confused my nephew was when his theory of my being masculine seemed to fail when he measured my fingers over and over and found my index and ring finger were of equal length suggesting that I was more woman than man.

The whole basis of the study was based on levels of in-utero exposure to androgens or estrogens during pre-natal development. Other meaningful relations were able to be concluded as well; including relations to spatial skills as well as language and artistic aptitudes vs. mathematical and logical/reasoning aptitudes. All of these relations appear to be a direct correlation of the brain's exposure to male or female hormones pre-natally. I'll save the good stuff for when you check out these links...

Let's just say that both my wife and I were surprised at the results we discovered for both her and I. The shorter length of her index finger as compared to her ring finger also related directly to the relations drawn for her left-handedness as a possible result of higher testosterone levels pre-natally and correlated well to other aspects that concern her as well.

http://www.viewzone.com/fingers.html

http://www.sciencenetlinks.org/sci_update.php?DocID=260

The following link presents this in a short audio format which I would suggest listening to...
http://audio.scienceupdate.com/050321_sciup_rad.mp3

Also take a look at this:

http://www.viewzone.com/homosexual.html

about half way down the following excerpt is especially notable...


"if a mother is stressed during the early stages of pregnancy, she will release an adrenaline related hormone into her own bloodstream and that of her unborn baby. This hormone, called androstendione, is structurally similar to testosterone, the male hormone. If the baby carries "XY" chromosomes and is destined to become a male, testosterone needs to be active when the Central Nervous System (including the hypothalamus) is being formed. This is the only way that the CNS "knows" to develop along male lines. Because the stress hormone seems to bind to the receptors that would normally be receiving testosterone, there is the delay or blockage of the effectiveness of testosterone, even if it is plentiful."

"...The present data support the hypothesis that exposure of pregnant rats to environmental stressors modifies the normal process of sexual behavior differentiation in male fetuses by decreasing functional testosterone and elevating androstenedione levels during prenatal development. During stress conditions plasma testosterone emanating from the gonads decreases while adrenal androstenedione rises. The molecular structure of the two androgens, being very similar, it is postulated that the two hormones compete for the same receptor sites. Since androstenedione is a less potent androgen than testosterone, the decrease in male copulatory ability and increased lordotic potential seen in the prenatally stressed animals of the present study would be expected. The relative difference in potency between testosterone and androstendione has been repeatedly demonstrated.

It is therefore possible that while the body and organs of an animal can be a "male," the brain can coincidentally be "female."


I would love to hear what others results from this simple finger test might be as it appears to be one possible physical manifestation of an underlying relation...

-Christen

Views: 12

Comment by Stacie Dee on November 19, 2009 at 12:11am
Wow, mine are about equal if maybe the ring is a hair shorter. Interesting, though now I have to check all my friends and co-workers hands. I need to know. ;-)
Comment by Marsha M. Marsha on November 19, 2009 at 6:02am
Interesting, my wife always admierd my slender more feminine looking hands going back to when we frist met. Looking at the ahnd chart I am a lesbian. Makes sense to me.
Comment by Emily Owens on November 19, 2009 at 6:38am
This was a very interesting post Christen. And not-surprisingly, same length here (roughly)
Comment by Cheryl Jacob on November 19, 2009 at 7:20am
Very interesting, thank you for sharing this information.

Oh oh, while my Grandma always told me I have beautiful hands, I have over half an inch difference in length between the aforementioned fingers. No joke. Perhaps for me nurture will trump nature in this case.

My knuckles also drag on the ground, did the study make any mention of the implications of that? :)
Comment by Lauren Elisabeth Tancyus on November 19, 2009 at 7:38am
That is interesting; I've been interested in physical features for quite awhile and am looking into whether I might have xy/xxy klinefelter's mosaic, I've seen some studies about various physical attributes in which transsexual women are more like genetic women, pre hormone administration. I'm left handed, on my left hand my ring finger is markedly longer than my index finger, but on my right hand my ring finger is only slightly longer. I do have mixed dominance and do many things right handed. I read that women's arms in the anatomical position bend out at the elbow away from the bodies and men's are straight from the elbow. Mine are bent.

Hey Cheryl! My knuckles used to drag the ground until I went on hormones! :)
Comment by Susan Langley on November 19, 2009 at 7:51am
Christen, unlike several other respondents, my ring finger is a tad bigger than my index finger, so now I'm bummed out like I was when my kerotype results came back as bog standard XY. The good news is I have relatively small hands and wear size medium woman's gloves, so I'll take that over same size fingers any day. Also, it doesn't look like I'm a homosexual man either, which is a relief.

LOL, Sue
Comment by Carolyn Jahnes on November 19, 2009 at 11:46am
Christen, my index and ring fingers are roughly the same...my ring finger is perhaps milimeters longer than my index finger if I hold both hands up in a 'stop!' position, or lay my hands flat at the edge of my desk...interesting test...
Comment by Christen Bustani on November 19, 2009 at 12:40pm
It seems the most accurate readings are taken - palm up, fingers equally spaced and parallel to each other and press your hand down flat to ensure and accurate measurement.

I drew a horizontal line on a piece of paper and used this as a guideline as was done in the representative images in the first link.
Comment by Kristi L on November 19, 2009 at 12:53pm
Christen you are becoming our resource for research about people like us. This is great and I truly enjoy your blogs and information. I have read about finger ratios before and it seems like fairly accepted indicator. Add my name to your data sampling with equal length ring and index fingers. I hope that you will keep us informed of your results.
Comment by Christen Bustani on November 19, 2009 at 1:21pm
This is definitely the proverbial grain of salt however it appears to be a relevant grain of salt in the shaker of what is the sum of what makes us up. What I am looking at is specifically pre-natal fetal development and nothing more. There are too many additional factors involved which make us the complex creatures we are today. My look here is to understand if we are born with something already of a pre-disposition towards a specific gravitation toward one gender or the other (mentally) in life and what triggers there may exist and types of physical markers which may assimilate them.

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