Guys with shorter index fingers than ring fingers tend to have bigger penises than people who have got a reversed case.
Since shorter members stretch more than longer ones, the stretched measurement used by the researchers is more telling about the size of an erect penis. Other researchers measured the patients’ index and ring fingers.
Reasons given including the fact that while men were foetuses, the testosterone they were exposed to is responsible for developing penises and fingers.
The early testosterone exposure reflected in your fingers (and elsewhere) affects you in many other ways, explains Denise Brooks McQuade, a scientist at Skidmore College not affiliated with the study.
Guys with shorter index finger than ring fingers known as a low digit ratio tend to have a higher risk of prostate cancer, be better at sports and financial trading, and have higher sperm counts.