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Study: Finger Size an Indicator of Penis Length

Hey ladies (and gay men) -- want to know how big the man you just met might be "down there?" Just check out his fingers.

Two fingers in particular. Researchers in South Korea say they have found a link to the difference in size between the index and ring fingers, and penis size.

CBS News writes:

After measuring pre-and post-surgery lengths for all three "digits," the researchers found the average ratio between the second and fourth finger was 0.38 inches, and ranged from 0.35 to 0.44 inches. These measurements may be too small for the naked eye to notice, but when the researchers compared these finger lengths with penis size, they found the lower the digit ratio, the longer the penis was

"According to our data...the shorter index finger than ring finger you have, the longer stretched penile length you have," Dr. Tae Beom Kim, study author and professor of urology at Gachon University told Reuters.

This is not the first time researchers have found a link between the size differences of those fingers and male health.

Earlier studies linked it to sperm count and heart attack risk, as well as to how much testosterone a man was exposed to in the womb, which has been linked to hormone-driven diseases like prostate cancer.

Writing an accompanying commentary to the study in the Asian Journal of Andrology, Dr. Denise Brooks McQuade, professor of biology at Skidmore College in New York, said a 2011 study found participants that had an "index finger longer than ring finger were significantly less likely to have prostate cancer."

"Digit ratio is non-invasive and easy to measure, yet may provide clues about an individual's prenatal history." McQuade told Reuters. "Combined with other information, digit ratio offers the potential for clinical usefulness."


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