Here's an interesting 2-min video post by TED that has implications to trading by proving that many of the bad behaviors that traders have, which cause them to lose money, are hard wired into us; such as taking small profits (sure thing) and letting losers grow and not take a predefined losses with stops; and not recognizing that losing is a normal part of trading that can be controlled with discipline instead of emotion/instinct which is the norm with new traders who lose money.  

Anyway it's worth a watch.