unicorn booty, gay health, gay news, gay blog, digit ratio theory

(Sex)Mythbusters – Can Finger Size Determine Sexuality?

unicorn booty, gay news, gay health, gay blog, gay mythsThe Myth: You can tell if a person is gay by the size of their fingers.

True or False? Shockingly, this one actually has some real truth to it!

There is a correlation between the size of your ring and pointer fingers that is linked to your sexual orientation. Apparently conditions in your mother’s womb during gestation like rent prices and square footage affect the release of sex hormones estrogen and testosterone, which influence the development of finger size, along with your brain. It’s called Digit Ratio Theory.

Digits are subtly affected by testosterone and estrogen produced in the womb by the fetus (not by the mother). Between weeks 8 and 14, tiny fetal testes, ovaries and adrenal glands secrete the baby’s own supply of sex hormones. These chemical messengers, particularly testosterone, cause chain reactions in the body, spurring the growth of the genitals, encouraging and inhibiting growth in brain regions and causing changes in the fingers. Many scientists believe relative finger length—or digit ratio—is a marker for brain differences molded by hormones. Like a bit of prenatal graffiti, a longer ring finger says, “Testosterone was here.”

Psychology Today reports:

John Manning, a biologist at the University of Liverpool, first identified digit length as a sign of prenatal hormones eight years ago. He believes digit ratio is an important, if indirect, tool for studying the fetal brain and the womb, an environment that’s off-limits to scientists except for analysis by amniocentesis. (And even then, because sex hormones fluctuate hour by hour, amniocentesis is a poor indicator of testosterone exposure.)

“Early sex hormones have an organizing effect on the brain that’s permanent,” Manning says. But the differences between the sexes aren’t all that interesting to biologists. More telling are the variations within each sex. Females with masculine digit ratios have more masculine behaviors, he says. Likewise, males with a typically female ratio exhibit more typically feminine behaviors.

A study of digit ratio in Scottish preschool children between the ages of 2 and 4 found strong relationships between digit ratio and gender-normative behavior. Girls with masculine-type finger ratios tend to have higher hyperactivity scores and more problems relating to their peers than do other girls. The same study, published in Early Human Development, found that boys with female-type finger lengths are on average more emotional than other boys. “They tended to be very sensitive,” says Manning.

Except for genitalia, relative finger length is the only physical trait fixed at birth that is sexually dimorphic—meaning males and females show typical gender differences. Other sexually dimorphic traits, such as height and waist-to-hip ratio, don’t appear until puberty.

unicorn booty, gay health, gay news, gay blog, digit ratio theory
So what does THIS mean?

Let’s check out some famous fingers. A study at the University of Melbourne found, “The picture [of President Obama] provides some detailed guidelines to assess the digit ratio of Obama’s left. The 2D:4D digit ratio of his left hand is likely to be in the zone: 0.90 – 0.92. A very ‘masculine’ finger length ratio!”

It’s important to note that finger length is but one indicator in a whole spectrum of genetic causation. So don’t go around slyly judging your coworkers by their handshakes. Still, we’re very surprised to see that statistically, this myth has quite a bit of truth to it!

Tell us your finger ratio below!

  • Anonymous

    My ring finger is a teeny tiny bit shorter than my index finger

  • ramltfaw

    My ring finger is a teeny tiny bit shorter than my index finger

  • Maria Lorimer

    I’m a woman and I just measured the 2nd and 4th fingers on my right hand and divided the measurements. What a result! I got .91! Makes sense, though. I’m bisexual, and I tend to score high on “masculine” traits in personality tests.

  • 0.96

  • Cool article but there’s a crucial step of logic missing. The study says males with typically female digit ratios tended to exhibit more feminine behavior, e.g., they tended to be more “sensitive.” Sensitivity gay. I know it’s common for us in the LGBT community to associate observed feminine behavior and mannerisms in men (or masculine behavior/mannerisms in women) with probable homosexuality. But the particular study referenced above doesn’t appear to make that leap; that is, at least the part of it quoted above doesn’t.

  • Gypsy-Maria Lorimer

    I’m a woman and I just measured the 2nd and 4th fingers on my right hand and divided the measurements. What a result! I got .91! Makes sense, though. I’m bisexual, and I tend to score high on “masculine” traits in personality tests.

  • I’m totally fascinated by this topic so I’ve done a little online searching and, indeed, there is research that connects digit ratio to sexual orientation (as opposed to simply masculine or feminine “behaviors”). For women, the relationship appears most concrete: those with more masculine digit ratios (i.e., lower ratios) do tend to be lesbian. The relationship is less clear, however, for men. Researchers disagree; some say there’s no relationship, some say there’s a positive correlation between digit ratio and likelihood of male homosexuality, others say there’s a negative correlation. One article I found further complicated the issue, saying that men with more than one older brother are more likely to be gay and to have lower digit ratios when compared with men (either hetero or homo) with no, or just 1, older brother. Those interested should google “digit ratio and homosexuality.”

  • David Neale

    0.96

  • David Neale

    Cool article but there’s a crucial step of logic missing. The study says males with typically female digit ratios tended to exhibit more feminine behavior, e.g., they tended to be more “sensitive.” Sensitivity gay. I know it’s common for us in the LGBT community to associate observed feminine behavior and mannerisms in men (or masculine behavior/mannerisms in women) with probable homosexuality. But the particular study referenced above doesn’t appear to make that leap; that is, at least the part of it quoted above doesn’t.

  • David Neale

    I’m totally fascinated by this topic so I’ve done a little online searching and, indeed, there is research that connects digit ratio to sexual orientation (as opposed to simply masculine or feminine “behaviors”). For women, the relationship appears most concrete: those with more masculine digit ratios (i.e., lower ratios) do tend to be lesbian. The relationship is less clear, however, for men. Researchers disagree; some say there’s no relationship, some say there’s a positive correlation between digit ratio and likelihood of male homosexuality, others say there’s a negative correlation. One article I found further complicated the issue, saying that men with more than one older brother are more likely to be gay and to have lower digit ratios when compared with men (either hetero or homo) with no, or just 1, older brother. Those interested should google “digit ratio and homosexuality.”

  • Whe I did the 2nd divided by the 4th digit I got 1.04 but then I did the reverse just to check why the first was so high. i did 4th digit divided by the 2nd digit I got a result that is more coherant to the studies which was 0.95. Is the second one right and also why did i have to do it BACKWARDS in order to match the studies? Which as far as I can tell from the one webpage on the subject that I’ve looked at only goes up to 0.98. Just questions. Someone help to understand this better. & yes I did measure my fingers right. lol. IDK! I’m confused. Maybe I’m just so mega gay (and APPARENTLY by the second digit divided by 4th digit more masculine that OBAMA o.O) that I’m off the gay digit ricter scale! bahahahahahaha. XD I did everything step by step though. & I’m a lesbian btw. Leave it up to me to try to be different and absorb all that testosterone (lol absorb haha) even in my mom’s womb. So that’s were my ever present desire to be unique and different started. Now it all makes sense. lol Anyway a 1.04!? That makes no SENSE!

  • Vanessa Sills

    Whe I did the 2nd divided by the 4th digit I got 1.04 but then I did the reverse just to check why the first was so high. i did 4th digit divided by the 2nd digit I got a result that is more coherant to the studies which was 0.95. Is the second one right and also why did i have to do it BACKWARDS in order to match the studies? Which as far as I can tell from the one webpage on the subject that I’ve looked at only goes up to 0.98. Just questions. Someone help to understand this better. & yes I did measure my fingers right. lol. IDK! I’m confused. Maybe I’m just so mega gay (and APPARENTLY by the second digit divided by 4th digit more masculine that OBAMA o.O) that I’m off the gay digit ricter scale! bahahahahahaha. XD I did everything step by step though. & I’m a lesbian btw. Leave it up to me to try to be different and absorb all that testosterone (lol absorb haha) even in my mom’s womb. So that’s were my ever present desire to be unique and different started. Now it all makes sense. lol Anyway a 1.04!? That makes no SENSE!

  • Kathleen Baldwin

    my ring finger is just a tiny bit longer than my index finger, maybe a millimeter!

  • I didn’t do all the math but my ring finger is DEFINITELY longer than my index finger by about 1/8 inch. I am a ‘mostly straight’ female (I will clarify below), but I have ALWAYS had a very high level of interest in sex and a high sex drive… maybe that marker of high testosterone, if this idea turns out to indeed be accurate, simply could relate to sex drive as well?

    Wouldn’t exactly say that I’m Bi, at least “yet,” because I don’t feel I have enough personal experience to go by to make that decision… but I personally hate such strict labels anyway. My personal belief is that there is a varying “scale” of sexuality — not just one or the other or both or none — but that’s just my opinion. 🙂

    I find the study and this article very interesting, though! And the photo of Obama thrown in with it made me laugh. He is definitely a very masculine gentleman (didn’t need a test to prove that IMO) and very handsome at that! 😉

  • I’m exactly the same way! My ring finger is also longer than my index, and I have a high sex drive! It’s interesting that there could possibly be correlation!

  • Toni-Lee Lorenzi

    My ring finger is longer than my index. Now I need to check my fiance’s lol.

  • Anonymous

    Mine are even. Does that mean I’m bi? lol

  • TC Wilson

    Um. According to the other stuff I’ve read on this subject. My 2D:4D ratio says I should be painfully straight (VERY low ratio, and my index and ring fingers are almost the exact same length).

  • on my left hand the ring finger is much much longer than my index finger.
    on my right hand the ring finger is almost the same size but maybe slightly shorter.

    I’m a masculine100% Gay bottom.

  • but the little diagram specifically says “men typically score below 1, women above 1” and that, combined with what math says, means that the max of 0.98 is completely inaccurate. But as far as being more masculine than obama, that would require a ratio of Less than .92. My 2 and 4 d are almost even. my left hand is slightly more uneven than my right, it gives me a ratio of about 0.96… if i used my right hand, my ratio would be about 0.99999…. which is a virtually feminine score.

  • i do find this rather fascinating, but i am willing to bet that, if there were a cross study done of open homosexuals (male and female) vs total heterosexuals, you would find that more of the homosexuals score closer to the 1.0 ratio than the heteros. “most” men score below one, “most” women score above…. so i personally would hypothesize that those who combine elements of both… would score closer to the middle.

  • I’m definately gay and I have a ratio of 0.86 Comon now guys.. I am, however, very masculine.. and everyone thinks that I’m very straight.. However, I am not.

  • You read wrong.. having index and ring fingers that are the same length are supposed to be an indicator that you ARE gay.

  • Amy Cain Newsom

    well now I’m a lefty does that make adifference because my left ring finger is longer than my index finger but on the right had as far as i can tell measuring my actual fingers or the photocopy my index and ring fingers are the same length

  • Eve

    I know this is an old post but I’ll still add my 2 bits. My ring finger is significantly longer than my index finger, and hubby’s is shorter. I have always had difficulty relating to other girls, and hubby has always been a sensitive kind of guy. I like comic book movies, and he likes chick flicks. Neither of us is gay, though. Not even a little. On the other hand, our eldest daughter has typical digit ratio for women, and IS gay.