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Study shows relation between mothers' income level and children's finger length 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 phenomenon is an unconscious evolutionary response aimed at boosting their offspring's chances of successful reproduction. It helps, in part, explain associations between low income, low levels of testosterone before birth, and major causes of mortality such as cardiovascular disease. The ...

 E-Mail IMAGE: 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... view more  Credit: John Manning, Swansea University 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 phenomenon is an unconscious evolutionary response aimed at boosting their offspr...