Video: Prof. John Manning presents a 2d:4d digit ratio college in Mexico!
- 2D:4D Digit Ratio News & Reports -
Finger length - the 2d:4d digit ratio
[2017-2001]: 63 reports!
The 2D:4D Digit Ratio concerns
the length ratio of the index finger &
the ring finger. During the past 10 years
professor John Manning's finger ratio became
a popular topic, though the purpose & potential
applications has often been misunderstood. Digit ratio
can best be understood as a prenatal hormonal marker.
The articles listed below are fascinating reports about
various aspects showing what 2D:4D finger length ratios may reveal: