The Perfect Sperm Donor

Guys who are intellectual, shy and calm tend to perform better on the online sperm donor market than extroverted men, according to a new analysis published in the journal Applied Economics.

Women were far less likely to choose the sperm of fretful or socially awkward men. But at the same time, those with lively, extroverted personalities were also less successful in being chosen. © 2014 - All videos published on MedVideos are the property of their respective authors or publisher.