Hands may say more about their owners than commonly thought, especially in the case of men.
Men whose index fingers are shorter than their ring fingers may have longer penises, according to a South Korean study published in the Asian Journal of Andrology.
“According to our data ... the shorter index finger than ring finger you have, the longer stretched penile length you have,” wrote Tae Beom Kim at the urology department of Gachon University Gil Hospital in Incheon, South Korea, in reply to questions from Reuters.
Photo: Reuters
照片：路透
Previous studies have shown strong evidence that prenatal testosterone may determine finger development as well as penile length, a relationship that Kim and his colleagues launched a study to focus on.
The study involved 144 men suffering from urological problems that did not affect the length of their penis, which was measured under anesthesia.
The measurements were later compared to the difference in length between their second and fourth fingers on the right hand. Previous studies have shown that the right hand may be more sensitive to the influence of testosterone.
The so-called “digit ratio” in this study refers to the length of the index finger divided by the length of the ring finger. The lower the ratio, the study suggests, the longer the penis may be.
A study last year said that men with long index fingers have a lower risk of prostate cancer.
Researchers at Britain’s Warwick University and the Institute of Cancer Research found that men whose index finger is longer than their ring finger were one-third less likely to develop the disease than men with the opposite pattern of finger length.
(REUTERS)
雙手不再只有一般所想到的功能了，因為它們還可以透露關於其主人─尤其是男性─的內在美。
根據刊登在《亞洲男性醫學期刊》一篇來自南韓的研究，食指比無名指短愈多的男性，陰莖可能會愈長。
南韓仁川的嘉川大學吉爾醫學中心泌尿部門的研究員Tae Beom Kim回應路透提問時寫道：「根據我們的數據，食指愈是比無名指短，陰莖則愈長。」
過去研究顯示，胎兒在母體內的雄性激素濃度，可能是決定未來手指以及陰莖發育長度的關鍵。Kim與其他研究人員針對此關聯性，進行這項研究。
因泌尿疾病並不會影響陰莖長度，研究對象為一百四十四位患有此類疾病的男子，在麻醉狀態下，測量他們的陰莖長度。
所量測的結果，再與研究對象右手食指與無名指，相差的長度做比較。先前有研究已顯示，右手可能對雄性激素的影響，（比左手）更為敏感。
這項研究中所謂的「手指比例」，是食指長度除以無名指長度所得到的數值。這項研究顯示，比例愈小，則陰莖長度可能愈長。
去年的一項研究指出，有較長食指的男性，罹患攝護腺癌的可能性就愈低。
英國華威大學與癌症研究機構的研究員發現，食指較無名指長的男性，比手指比例相反的男性，有三分之一的機率，較少罹患攝護腺癌。
（路透／翻譯：林亞蒂）
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