2D:4D ratio for finger length (IMAGE)

Swansea University

2D:4D ratio for finger length

Caption

Low-income mothers feminize their children in the womb by adjusting their hormones, whereas high-income mothers masculinize their children, a major study based on finger length, led by a Swansea University expert, has found. The study was based on the relationship between the length of a person's index and ring fingers, known as the 2D:4D ratio. What is significant about the new report is that the team examined the ratio in relation to parental income.

Credit

John Manning, Swansea University

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