New study analyzes link between digit ratio and oxygen consumption in footballers
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 a person's index and ring fingers, known as the 2D:4D ratio is correlated with performance in distance running, age at heart attack and severity of Covid-19.
https://www.sciencedaily.com/releases/2024/02/240216135911.htm