Biological explanation

A recent episode of This American Life dealt with the issue of testosterone. A researcher in the field and the author of Heroes, Rogues and Lovers: Testosterone and Behavior was discussing how testosterone varying levels impact behavior.

He described people with naturally high levels of testosterone as being characterized by boldness, fearlessness, confidence, a willingness to speak one’s mind, and a tendency to move things forward with little hesitancy or indecision. However, the drawback is that these people tend to develop enemies and be blindsided by things going on around them.

Am I wrong, or does this sound like someone you know?