Examine your fingers. Which is longer? Is it the index finger (the finger you use to point with – technically the second digit, or 2D, counting the thumb), or the ring finger (the fourth digit, or 4D) ...

While this football player's arms may look like they give him an onfield advantage, his fingers may actually be more predictive of his athletic ability. Ostill/Shutterstock.com Examine your fingers.

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

You probably don't spend a lot of time thinking about why our hands are so weirdly shaped, but there are scientists who devote plenty of time to the matter. In fact, there are several theories out ...