In males, digit ratio or 2D:4D—the relative length of the index (or second finger) and ring finger (4th)—was the strongest predictor of lactate. Professor Manning said, "Men with a long ring finger ...

The pointer finger is the second digit and first finger of the human hand. It is also called the index finger or the forefinger. This finger often possesses the largest amount of sensitivity and ...

Dear Dr. K: A friend told me that we have no muscles in our fingers. Is that true? If so, then how do our fingers do all that they do? Dear Reader: It is true, but our hands work wonderfully anyway.