To measure your finger straighten it and look at the palm of your hand. At the base of your index and ring fingers there are likely to be creases. Your index finger is likely to have one crease, the ...

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 ...

having uncommonly long ring fingers raises the risk for developing OA of the knee, independent of other risk factors and particularly among women. Index to ring finger length ratio (2D:4D) is a trait ...

The ratios between the lengths of the second and fourth fingers, known as the 2D:4D ratio, are different in males and females, which is often explained by levels of androgens and oestrogens. However, ...

OBJECTIVESTo explore whether random chance, weak research methodology, or inappropriate reporting can lead to claims of statistically significant (yet, biologically meaningless) biomarker associations ...

Twin Research and Genetic Epidemiology Unit, St Thomas’ Hospital, London, UK Correspondence to: Professor Spector Twin Research and Genetic Epidemiology Unit, St Thomas’ Hospital, London SE1 7EH, UK; ...

This is a preview. Log in through your library . Abstract The second-to-fourth digit ratio (2D : 4D) is a well-studied sexual dimorphism that likely arises as a result of prenatal androgenic effects ...