Scientific Reports where it discovered the ratio is different in men and women due to sex hormones.Some believe the 2D:4D ratio gap is only due to the differences in total finger length and their uneven growth in men and women.But the analysis showed no evidence that there would be sex differences in 2D:4D as finger lengths varied among genders.So basically, boys and girls under 13 had about the same finger lengths, while the 2D:4D ratios were already present.There is still a lack of correlation between total finger size and the ratio doesn't explain the differences in males and females.However, it is likely that sex and sex hormone levels directly impacted the 2D:4D ratio.So what does that really mean?The findings from the study.
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