Finger length ratio (2D:4D) associated with traffic violations for male frequent car drivers!
September 28, 2009
 Long ring fingers drive faster! |
Finger length & traffic violations: long ring fingers drive faster!! New research from Germany has pointed out that men with long ring fingers (low 2D:4D ratio) may more easily get into trouble – by driving too fast, overtaking on dangerous roads, or parking illegally. For, men with long ring fingers reported more traffic violations! Earlier research pointed out that men with long ring fingers show more: agression, assertiveness, and they take more financial risks! |
| New ring finger research from Germany:
Researchers at the University of Mainz recruited 77 male drivers at an average age of 38. Each volunteer had their left hand scanned to measure the difference in length between the ring and index fingers. They then had to provide details of all driving offences within the previous five years. Just over a third of the drivers reported having penalty points on their licences, ranging from one to 20, for offences ranging from speeding to drink driving. The results, published in the journal Accident Analysis and Prevention, showed men with longer ring fingers were more likely to have offended. In a report on their findings the researchers said: ‘A longer ring finger than index finger was related to more traffic violations. Hormone exposure in the womb might increase traffic violations in later life.’
By the way, earlier reports pointed out that Jamaicans are known for having the long ring finger, and young sprinters with long ring fingers appear to have more sprint talent (indicated by faster sprints) … some anecdotal evidence is provided by Usain Bolt, the world’s fastest man – who has the long ring finger … and had a car-crash accident earlier this year!!
A FEW SUGGESTIONS FOR FURTHER READING: • About: long ring fingers, testosterone & men who drive too fast! |
Your finger length, handedness & chirality! (part2)
September 7, 2009
Handedness & your finger length ratio While a few years ago early studies had identified a link between various hand characteristics and handness, last year the link was ‘officially’ confirmed in an Australian study that had used a new method for measuring finger length ratio. Now a new BBC internet study by the ‘finger professor’ John T. Manning has confirmed the earlier findings. TITLE OF THE STUDY: Digit ratio (2D:4D) and hand preference for writing in the BBC Internet Study. SUMMARY OF THE STUDY:
“We replicated a significant association between right 2D:4D and writing hand preference (low right 2D:4D associated with left hand preference) as well as a significant correlation between writing hand preference and the difference between left and right 2D:4D or Dr-l (low Dr-l associated with left hand preference).” “A new significant correlation between left 2D:4D and writing hand preference was also shown (high left 2D:4D associated with left hand preference). There was a clear interaction between writing hand preference and 2D:4D: The left 2D:4D was significantly larger than the right 2D:4D in male and female left-handed writers, and the right hand 2D:4D was significantly larger than the left hand 2D:4D in male and female right-handed writers.” READ FURTHER ABOUT FINGER LENGTH & HANDEDNESS: The origins of handedness
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“The ratio of the length of the second to the fourth digit (2D:4D) may be negatively correlated with prenatal testosterone. Hand preference has been linked with prenatal testosterone and 2D:4D. Here we show that 2D:4D is associated with hand preference for writing in a large internet sample (n>170,000) in which participants self-reported their finger lengths.”
 Usain Bolt has the long ring finger, female sprinters from Jamaica as well! |
Usain Bolt has the long ring finger, a marker for sprint talent! The 2008 olympics in Beijing pointed out that Jamaican sprinter Usain Bold is the fastest man on sprint ever! And last sunday he set another new world record 100m sprint at the Athletics World Championships 2009 Berlin. How come that Jamaican sprinters run so fast? |
| SPRINT RESEARCH (2009)
Earlier this year research on the hands of sprinters pointed out that a long ring finger (low 2D:4D ratio) relates to a fast sprint – new photos indicate: both male sprinters AND female sprinters from Jamaica have the long ring finger! BERLIN 2009 RESULTS OF JAMAICAN SPRINT-TEAM SO FAR: • 2x Golden medal
READ FURTHER ABOUT THE RING FINGER: |
US Presidents usually have a low 2D:4D finger ratio!
August 6, 2009
 Barack Obama.  George W. Bush.  Bill Clinton.  George H.W. Bush.  Ronald Reagan.  Jimmy Carter.  Gerald Ford.  Richard Nixon.  Lyndon Johnson. |
Presidential palm readings: US presidents have a low 2D:4D finger ratio! Earlier this year TIME presented a photo essay of the hands of the last 9 US presidents. Let’s take a look at the finger ratio of their right hand! Barack Obama’s finger ratio: Barack Obama’s right hand clearly shows a very low ‘2D:4D digit ratio’. An earlier report on his left hand presented a ‘2D:4D digit ratio’ estimation close to 0.90-0.92, and various photos indicate that the same zone is indicated for his right hand. NOTICE: though his inauguration photo appears to present a slightly higher ratio – but in that photo his fingers are obviously not ’stretched’ and therefore that photo should be ignored). George W. Bush’s finger ratio: His inauguration photo shows that George W. Bush’s right hand shows a low ‘2D:4D digit ratio’, which is likely close to 0.90. Bill Clinton’s finger ratio: There are not many photos available that are suitable for measuring Bill Clinton’s finger length but various photos indicate that Bill Clinton’s ‘2D:4D digit ratio’ is close to 0.96-0.97, which could be described as normal for a white male. George H.W. Bush’s finger ratio: His inauguration photo shows that George H.W. Bush’s right hand shows a low ‘2D:4D digit ratio’, which is likely close to 0.95-0.96. Ronald Reagan’s finger ratio: Ronald Reagan’s right waving hand shows clearly a very low ‘2D:4D digit ratio’, which is likely close to 0.90. Jimmy Carter’s finger ratio: Jimmy Carter’s right waving hand shows also a very low ‘2D:4D digit ratio’, which is likely close to 0.90. Gerald Ford’s finger ratio: Gerald Ford’s inauguration photo shows that his ring finger is (much) longer than his index finger – confirmed by his right hand waving photo – but in his case it’s hard to make a more detailed estimation beyond that his finger length ratio can definitely be described as: ‘below average’. Richard Nixon’s finger ratio: Richard Nixon’s right hand waving photo shows that his ring finger is definitely longer than his index finger: ‘below average’ and close to 0.95-0.96. Lyndon Johnson’s finger ratio: Lyndon Johnson’s inauguration photo shows that lowest ‘2D:4D digit ratio’ of all presidential men – likely below 0.89. |
CONCLUSION:
Five out of the last nine US presidents (Obama, G.W. Bush, Reagan, Carter & Johnson) have a very low digit ratio – close to 0.90 or even lower!
Only in Clinton’s right hand the ‘2D:4D finger ratio’ can be described as normal.
SUGGESTION FOR FURTHER READING:
• Famous hands: the hand of celebrities!
• More news reports related tothe ’2D:4D digit ratio’
• The hands of Barack Obama: his finger length
• What does the hand of a celebrity reveal?
Is 2D:4D finger ratio research misleading?
June 26, 2009
 Is 2D:4D finger ratio research misleading? |
Is finger ratio research misleading / deceptive? This week Czech researchers presented a revision of their earlier reported results: “previously published results on the 2D:4D ratio are biased by its covariation with finger length”. But the Czech researchers also reported very explicitely: “We do not claim that the previous results for the finger length ratio are wrong”. What can we conclude from the latests step in finger ratio research? |
| What are the essentials of the Czech research? The Czech researchers claim that the fundamentals of the male-female 2D:4D finger length ratios can be related to male-female differences in finger length. Men usually have longer fingers (larger hand) than women – and there appears to be a negative correlation between finger length in general and the 2D:4D finger ratio.
The Czech research was presented under the title: ‘Differences in the 2nd to 4th digit length ratio in humans reflect shifts along the common allometric line’ – some quotes from the researchers about their finger ratio findings:
“Sexual differences in 2D : 4D are mainly caused by the shift along the common allometric line with non-zero intercept, which means 2D : 4D necessarily decreases with increasing finger length, and the fact that men have longer fingers than women.” “We do not claim that the previous results for the finger length ratio are wrong” “We conclude that previously published results on the 2D : 4D ratio are biased by its covariation with finger length. We strongly recommend regression-based approaches for comparisons of hand shape among different groups.” |
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Are you tall, short, or got a small head? Recently Roger Dobson – author at MailOnline.co.uk presented an informative article with the title: ‘Tall, short – or got a small head? Here’s what your physique reveals about your health’. The article describes how various body dimensions – varying from body length to foot size – can indicate useful information about your risk of developing certain conditions, varying from cancer through to dementia & heart disease. Roger Dobson wrote in his article about the hand:
Autism and ADHD, mental illness/depression A range of disorders has been linked to the length of fingers, and in particular the ratio between index and ring fingers. The ratio is thought to be a marker of what was happening hormonally in the womb when the foetus developed. It’s thought a relatively long ring finger is a sign that the foetus was exposed to higher levels of the male hormone testosterone, while a relatively long index finger is a marker of the female hormone, oestrogen. Conditions associated with a long ring finger compared to the index include autism and ADHD. Those associated with a longer index include depression. Males, who are more likely to develop autism and ADHD, tend to have a longer ring finger relative to their index finger. Exposure to certain hormones might increase or reduce the risk of certain conditions and traits. ‘It has been suggested that autism may arise as the result of exposure to high concentrations of prenatal testosterone,’ say researchers at Liverpool University.” |
 Will the 2D:4D digit ratio become the new chiromancy? |
Palmistry’s finger analogue: will the 2D:4D digit ratio become the new Chiromancy? Chiromancy (cheiromancy), the notorious pseudoscience, has for two decades been creeping back into scientific favour. Is John T. Manning its new high priest? The simplicity of the measure has inevitably launched a thousand research papers on hundreds of topics – including: heart attacks, breast cancer, running speed, football ability, sexual attraction, homosexuality, and schizophrenia. |
| THE NEW CHIROMANCY
How to understand the new Chiromancy? Hold up your right hand, and put your palm towards you and keep your fingers together; then measure the lengths of the 2th finger (index finger) and 4th finger (ring finger) – measure each finger from the tip to the crease where it joins the palm: see the picture below. Dividing the length of the 2th finger by the length of the 4th finger gives what in the jargon is known as the 2D:4D ratio!!!
Folk mythology has long suggested that men with large hands or feet will be well endowed, but there seems to be biological truth in that adage, with biologists finding that the same gene family, the Hox genes, underpins the development of “apical appendages”. Professor John T. Manning says:
The handedness-expert Chris McManon (psychologist from the UK) wrote a critical review of John T. Mannings ‘digit ratio’ work. You can read the full review via: • Palmistry’s digital analogue: is 2D:4D finger ratio the new Chiromancy? • The finger book – about the 2D:4D digit ratio • Hands up: what your fingers reveal about you • Digit ratio: a pointer to fertility, behavior and health • More digit ratio and finger length news |
 Britsh research points out that men whose ring fingers are longer than their index fingers run faster. |
‘The World’s Fastest Hand’ – research points out: long ring finger relates to a fast sprint! The 2008 olympics in Beijing pointed out that Jamaican sprinter Usain Bold has the world’s FASTEST hand… ever! How come that Jamaican sprinters run so fast? John Manning’s new finger research points out that a long ring finger (low 2D:4D ratio) relates to a fast sprint – other research indicates: Jamaicans have the longest ring finger! Source: The world’s fastest hand: why Usain Bolt & other Jamaicans run faster! |
| NEW SPRINT RESEARCH (2009)
British researchers have found that finger length might be a key factor in Bold’s world records at both the 100m and 200m. For, Jamaicans are known for having a low ‘2D:4D digit ratio’. The British ‘finger professor’ John T. Manning has recently presented new research which indicates that men who have a relatively long ring finger run faster! The research was done on 241 young male sprinters at a sports talent-spotting competition in Qatar. JAMAICANS HAVE THE LONG RING FINGER! Manning reported in his book ‘Digit Ratio’ (2002) that the average 2D:4D digit ratio in Jamaican people is among the lowest of the various populations in the world (a finding which was confirmed in a 2004 study). This might implicate that Usain Bolt’s digit ratio is actually not very low at all … in the perspective of the fact that he is a Jamaican man! The photo below illustrates that Asafa Powell, former world record holder & the second most famous sprinter from Jamaica, has the long ring finger as well! While Leonid Stadnyk from Ukraïne (unofficially the largest man on earth) has the world’s LARGEST hand, Usain Bolt is the fastest man ever and so he is: the World’s fastest hand!
READ FURTHER ABOUT THE RING FINGER: |
Finger length: five things that your 5 fingers can tell you!
March 13, 2009
 Five things that your fingers can tell you. |
John Manning is a professor at the University of Swansea and he wrote the book “The Finger Book”. Professor John Manning explains in his book how the ratio of the index finger and ring finger (= the ‘2D:4D digit ratio’ finger length) is related to the ‘Big five’ of life. |
| FINGERS & EVOLUTION
The human thumb is known as a ‘marker’ for the evolution of human kind; however our relative long index finger – compared to the ring finger – is a likewise example. In the chimpanzee and gorilla, this hand feature is different: they always have longer ring fingers and a short index finger. THE RING FINGER & SPORTS Exceptional performances in sports are being linked to the amount of male hormones that people absorb before birth while they stay in the womb. The ‘digit ratio’ has frequently been used to predict performances in various sports leagues. THE INDEX FINGER & SOCIAL BEHAVIOR Interestingly, especially among children a short index finger may indicate a lack of empathic ability. CROSS-CONTAMINATION There is growing statistical evidence that our finger ratios are a reliable predictor of our receptiveness to diseases. However, in real life the findings have not yet shown to have a significant impact. YOUR FINGERS & YOUR SEX-LIFE Men with long ring fingers, consider themselves as attractive. Studies show that women in the general rule agree and confirm the judgements of these men. Surprisingly, a likewise result has been found in women.
READ FURTHER ABOUT MANNING’S FINDINGS: |
The fingers of Albert Einstein: his finger-ratio points to autism!
January 29, 2009
 The fingers of Albert Einstein. |
Albert Einstein has a ‘2D:4D finger ratio’ of 0.93: In 1930 a German hand reader, Marianne Raschig, has taken the handprints of Albert Einstein (he was born in Germany) and one year later they were presented in her book: ‘Hand und Persönlichkeit’. Almost 80 years later the ‘2D: 4D digit ratio’ (ratio between the index finger & ring finger) is now measured from the high quality handprints. |
| Einstein had a ‘2D:4D finger ratio’ of: 0.93
The high quality handprints of Albert Einstein can found in the article: The picture below is also taken from the German book. The results of a detailed measurement procedure (taken by a Dutch psychologist) indicates that the ‘2D:4D digit ratio’ is for both hands: 0.93. This is especially interesting because researchers at Cambridge and Oxford universities believe Albert Einstein displayed signs of autism (Asperger syndrome). Earlier research on finger length & autism has indicated that a low digit ratio (0.94 or lower) highers the chance for the presence of autism! Therefore it seems fair to conclude that the fingers of Einstein provide evidence which support the perceptions of the UK researchers who suspect that Albert Einstein had autism!
READ FURTHER ABOUT FINGER TECHNOLOGY: |
'The Finger Book' – John Manning