LOW DIGIT RATIO (2D:4D) AND MASCULINE ATTRIBUTES: A CRITICAL ANALYSIS

Abstract

Background: The ratio between the length of the index finger (2D) concerning the length of the ring finger (4D) of a palm, which is noticed as second to fourth digit ratio (2D:4D). However, the length ratio of the second digit (the index finger) to that of the fourth digit (the ring finger) probably shows the quantity of male hormone, to which an individual is exposed in the womb of the mother. Likewise, several investigations define that low second to fourth digit finger ratio tended to have related to prenatal testosterone hormone. Prenatal testosterone hormone masculinizes the human body and therefore may build the athletic body. Aim: To review scientific literature related to the lower ratio of second to fourth digit ratio and masculinity. Methods: The Researcher collected scientific evidence through electronic databases; PubMed, Medline, Google Scholar, Google Advanced Search, Web of Science, and critically analyzed the entire relevant article according to the nature of this study. Findings: The lower second to fourth digit ratio is associated with prenatal testosterone hormone and is also related to masculine traits that may help in sporting performance. Conclusion: Masculine attributes may be linked to a lower digit finger ratio (2D:4D).