The ratio of the lengths of the 2nd and 4th digit (2D:4D) is negatively related to prenatal and adult concentrations of testosterone (T). Testosterone appears to be a protective against myocardial ...

The ratio of the second to the fourth digit (2D:4D ratio) is a sexually dimorphic trait established in utero that differs between ethnic groups. It is associated with prenatal androgen exposure, and ...

The ring finger refers to the fourth digit of each hand, located between the middle and pinky fingers. In Western cultures, it is common for people to wear engagement and wedding rings on the fourth ...

A new study suggests that the length of your fingers could indicate your drinking habits. Researchers found that people with a longer ring finger (4th digit) compared to their index finger (2nd digit) ...

Prenatal sex steroids influence alcohol consumption behavior in adults A long ring finger (4D) indicates prenatal testosterone exposure and a long index finger (2D) high estrogen exposure Men show ...