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 ...

Take a look at your fingers. Which is longer: your index finger or your ring finger? Researchers last year found that the ratio of the length of your index finger to the length of your ring finger -- ...

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 ...