Which race have the most superior dicks?

[Harkonnen]

The second to fourth digit ratio (2D:4D) has been proposed as a putative biomarker for prenatal testosterone and covaries with the sensitivity of the androgen receptor (AR). Both prenatal testosterone and the AR play a central role in penile growth. In this study, we investigated the relationship between digit ratio and penile length. Korean men who were hospitalized for urological surgery at a single tertiary academic centre were examined in this study, and 144 men aged 20 years or older who gave informed consent were prospectively enrolled. Right-hand second- and fourth-digit lengths were measured by a single investigator prior to measurement of penile length. Under anaesthesia, flaccid and stretched penile lengths were measured by another investigator who did not measure nor have any the information regarding the digit lengths. Univariate and multivariate analysis using linear regression models showed that only height was a significant predictive factor for flaccid penile length (univariate analysis: r=0.185, P=0.026; multivariate analysis: r=0.172, P=0.038) and that only digit ratio was a significant predictive factor for stretched penile length (univariate analysis:r=−0.216, P=0.009; multivariate analysis: r=−0.201, P=0.024; stretched penile length=−9.201×digit ratio + 20.577). Based on this evidence, we suggest that the digit ratio can predict adult penile size and that the effects of prenatal testosterone may in part explain the differences in adult penile length.

During the foetal 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. Stretched penile length was negatively associated with digit ratio. Based on this evidence, we suggest that digit ratio can predict adult penile size and that the effects of prenatal testosterone may in part explain the differences in adult penile length.

As Finnish dudes have notoriously low 2d4d



Good guess would be that East Baltic dudes have biggest dicks.

[Cleitus]

I've read somewhere that dicks size has correlation with sex hormone levels and sun exposure during puberty.

It has to do with the sensitivity to Dihydrotestosterone and it's conversion from Testosterone via 5-alpha reductase, which in return again is conditional upon genetic predisposition. Some people have lower 5-alpha reductase, and some have certain tissues which are less sensitive to dht or are generally less sensitive like Asians for example.

https://pubmed.ncbi.nlm.nih.gov/12843198/

Gesendet von meinem SM-G780G mit Tapatalk

[Benyzero]

It has to do with the sensitivity to Dihydrotestosterone and it's conversion from Testosterone via 5-alpha reductase, which in return again is conditional upon genetic predisposition. Some people have lower 5-alpha reductase, and some have certain tissues which are less sensitive to dht or are generally less sensitive like Asians for example.

https://pubmed.ncbi.nlm.nih.gov/12843198/

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Don't you mistake it for male pattern baldness ?

[Benyzero]

It has to do with the sensitivity to Dihydrotestosterone and it's conversion from Testosterone via 5-alpha reductase, which in return again is conditional upon genetic predisposition. Some people have lower 5-alpha reductase, and some have certain tissues which are less sensitive to dht or are generally less sensitive like Asians for example.

https://pubmed.ncbi.nlm.nih.gov/12843198/

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Maybe it has some correlation. But the fact the mutation can cause micropenis is not guarantee that it has to do with general size

[TheMaestro]

Hungarian admixtured people.

[Cleitus]

Don't you mistake it for male pattern baldness ?

Dihydrotestosterone (abbreviated as DHT) is a sex steroid and androgen hormone that plays a primary role in the growth of sexual organs as well as body hair. About 5% of testosterone is converted into DHT in men, which is synthesized by the 5a-reductase enzyme.

DHT deficiency leads to various degrees of undervirilized external genitalia including micropenis, primarily correlated with mutations of the SRD5A2 gene that encodes 5α-reductase type 2.

https://pubmed.ncbi.nlm.nih.gov/31178538/

[Harkonnen]

Smal East Asian penis is due high digit ratio, that is low prenatal testo

To date, it is well known that there are significant ethnic differences in digit ratio. In one study, the Oriental Han had the highest mean digit ratio, followed by the Caucasian Berbers and Uygurs, with the lowest mean ratios found in the Afro-Caribbean Jamaicans.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3739592/

[Cleitus]

Smal East Asian penis is due high digit ratio, that is low prenatal testo



https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3739592/

I highly doubt that prenatal testosterone has any causative effect on penile size, prenatal rise in testosterone serves masculinization of the brain primarily, not the development of secondary sexual characteristics.
Even though there might be a correlation.

[Harkonnen]

I highly doubt that prenatal testosterone has any causative effect on penile size, prenatal rise in testosterone serves masculinization of the brain primarily, not the development of secondary sexual characteristics.
Even though there might be a correlation.

Have no doubts buddy, very likely what I say is correct

The ratio of second to fourth digit length (digit ratio, 2D:4D) is sexually dimorphic in humans (the mean digit ratio is lower in males than females)1, 2, 3, 4, 5 and is thought to be fixed early in development.6, 7, 8, 9, 10 Across vertebrate species including humans, the Homeobox (Hox) a and d genes regulate limb development, including fingers and toes, as well as development of the urogenital system, including testes, ovaries and penises.6, 7, 11, 12 Manning et al.13 observed that the mean testis volume was significantly negatively correlated with the right digit ratio in azoospermic men.

It is well known Finnish dudes have very low 2d4d, even lower than Jamaican men. Finnish balls have also measured to be huge. Very likely same effect follows also penile size

https://slate.com/human-interest/201...han-finns.html

By all accounts, the Finns are winning hands-down (or up?) in the size wars. In a study of 1,600 babies born between 1997 and 2001, the Danes had smaller testicles than the Finns. Scientists know this because they expertly measured “ellipsoidal volume” and found the Danish package lagging at birth. The differences were even more pronounced after three months, with the Finns averaging three times more testicular growth. When these results were published in the Journal of Clinical Endocrinology & Metabolism in 2006, it was the Scandinavian equivalent of announcing Yale men have smaller nuts than Harvard men. The story “was very much in our media,” says lead researcher Katharina Main of the University of Copenhagen. Another study measured baby penile lengths, showing boys with more testosterone had longer lads. “The Finns are doing so much better from every parameter, semen, testes size, and cancer,” Main bemoaned. Basically, the bigger the nuts, the more Sertoli cells they contain, and Sertoli cells are the “nurseries” that produce sperm