India, June 13 -- Will you be able to finish a marathon? The length of your ring finger compared to your index finger might reveal your endurance capabilities, including your potential to finish a marathon. A study in the American Journal of Human Biology, published on April 4 2025, suggests that individuals with a longer ring finger than index finger tend to perform better in endurance activities. Also read | A ratio that predicts sporting prowess!

Researchers examined data from 22 research projects involving over 5,000 people across 12 countries. The team discovered links between finger ratios and certain types of fitness performance, though the connections proved more complex than expected.

The 2D:4D ratio, which compares the length ...