Finger length ratio predicts penis length!

JULY 4, 2011 – Finally… researchers in Korea think that they found the long awaited proof: finger length can predict penis length! Korean researchers at the In Ho Choi of Gacheon University Gil Hospital, have presented results in a sample of urological patients which indicate that in men with a low ‘2D:4D finger ratio‘ more often is featured with a long phallus (compared to men with a high ‘digit ratio’).

The researchers from Korea found that the ratio between the pointer finger & ring figner (2nd and 4th digits) on men’s right hand correlate to the length of his flaccid and stretched phallus (not errected). A lower index-to-ring finger length ratio indicates a longer (stretched) penis.

NOTICE: The table below is taken from the scientific article; it e.g. illustrates that likewise results were found for body length and penis length – for the ‘flaccid condition’ the result for body height were slightly higher than for the 2D:4D digit ratio, but in the ‘stretched condition’ finger length ratio was a better predictor for penis length!

The key to this relationship between penis size & finger length likely lies in the womb, a team member added:

“During the fetal period, high concentrations of testosterone lead to high testicular activity, resulting in a lower digit ratio, in the present study, patients with a lower digit ratio tended to have a longer stretched penile length.”

The researchers also added that the length of the stretched and flaccid penis does show “a strong correlation” with an erect penile length.

The Korean report was published on july 4 in the Asian Journal of Andrology, and the scientific article is available at Nature.com.


NO SURPRIZING RESULTS!

Finger names in Korean language.

Actually, the Korean results are not surprizing at all. Because British professor John Manning had already pointed out in his second book ‘The Finger Book (2008) that a study in the Naval and Veteran’s Hospital of Athens (Greece, 2002) had pointed out that the length of the index finger correlates with the length, glans & volume of the penis.

Manning commented (in ‘The Finger Book’):

“Spyropoulos and his collegues did not measure the remaining fingers, so we cannot be sure of their relationship to penis length. My guess is that they would have found the ring finger the strongest predictor, and that long ring fingers in relation to index fingers would be associated with longer penises.”

So, the 2011 Korean study shows ‘finger professor’ John Manning was right… again!


MORE ABOUT THE SCIENCE OF FINGERS: 

48 Reports about the 2D:4D finger length ratio!

Just another concept of how various types IQ could relate to the fingers...?

The previous post introduced Dermatoglyphics Multiple Intelligence Test (DMIT) – which e.g. describes how various aspects of intelligence could relate to the 10 individual fingers & the brain lobes. Unfortunately there appears to be no (academic) scientific evidence available which confirms the validity of the DMIT-model. But there appears to be multiple evidence available which does confirm that various hand features do provide clues to the general intelligence – specified to the intelligence quotient (IQ)!

In the next 3 posts a quick introduction to how various hand dimensions correlate with IQ, starting with: hand shape.

 • HAND SHAPE & IQ:

The two most common causes of a mental retardation (Down syndrome + fragile X-sydrome) are typically featured with relatively broad palm. This typically results in a high ‘hand index’: > 47. 

NOTICE: The ‘hand index’ is defined as: 100 x the quotient of the palm width and the hand length. A ‘hand index’ of 0.47 or higher could be described as high, because far most international ‘hand index’ studies so far indicate that the average varies from 42 to 0.46 (Japanese males: 43.1, American males: 46; Japanese females: 42.3, American females: 43.7). 

So, one could expect that a low ‘hand index’ could provide a clue to a high IQ. But one should be very aware of the fact that the ‘hand index’ varies among men (higher) and women (lower), and among ethnic populations (lower in asians, higher in caucasians).

Interestingly… a 1980 Zagreb study on a large sample of males (N=540) has pointed out that ‘hand width’ does correlate negative with IQ (confirmed at all 10 IQ measures involved in the study). The study also reported that ‘hand length’ did not correlate with IQ – some of the dimensions produced very small positive correlations, which raises the question whether ‘hand index’ would have produced more signficant results than ‘hand width’.

NOTICE: The 1980 study also reveal that all 10 IQ measures produced positive correlations which ‘body height’ – a result which has been confirmed by many studies.

The picture below demonstrates how to measure ‘hand width’: in scientific studies this is always done at the position of the metacarpals (0ne could use the starting point of the life line as an easy identifyable point of reference).

And hand length is measure from the distal wrist crease to the tip of the middle finger. 

Today Bao Xishun, Zao Liang & Leonid Stadnyk are known as the tallest men in the world.

Who has the largest hand?

While Robert Wadlow from the US is known as the tallest man in history, today the official title ‘world’s tallest man’ has become a true battle-field! Let’s take a look at the hands of the biggest 3 contenders:

The left hand of Bao Xishun from China.
The left hand of Bao Xishun.

Today, Bao Xishun – a former herdsman from China – has the official Guinness World Records title ‘tallest living man‘. Bao Xishun’s body height was measured at 2.36 meters (7 feet 9 inches).

The left hand of Leonid Stadnyk.
The left hand of Leonid Stadnyk.

However… in 2007 Leonid Stadnyk – a former veterinarian from Ukraine. Leonid Stadnyk’s body height was unofficially measured at 2.59 meters (8 feet 5 inches). But in 2008 Mr. Stadnyk refused to be measured under the new Guinness World Records guidelines, and so the the official Guinness World Records title ‘tallest man’ was re-gained by Bao Xishun.

The right hand of Zhao Liang from China.
The right hand of Zhao Liang.

But since april 2009 a new younger contender is known, named Zhao Liang – a former basketball player from China. Zhao Liang’s body height was measured by doctors at the Tianjin hospital at 2.46 meters (8 feet 7 inches).