Aggression, testosterone and your finger length!
November 1, 2008
John Manning wrote in his first book ‘Digit Ratio’:
|In his first book John Manning presented research which indicates that in both men and women a low digit ratio is frequently accompagnied with: “More aggressive and assertive behaviour”. Since then various studies have confirmed the relationships between aggressive behavior, high levels of testosterone, and a low digit ratio:
An overview of some of the more recent scientific sources which have found a link between finger length and aggressive behavior: