New research published in the American Journal of Human Biology has shown a link between certain digit ratios, in this case the ratio between the length of the index finger and ring finger, and oxygen ...

The efficiency of oxygen supply to tissues is a factor in the severity of important diseases such as Covid-19 and heart conditions. Scientists already know that the relationship between the length of ...

In addition to its relationship to a variety of diseases, the length ratio of the second and fourth fingers also correlates with stretched penile length in men. A series of rodent experiments showed ...