Have you noticed how a lot of fighters smile or even laugh when they are hit? To discourage the opponent, to taunt them, this can be a few of the reasons. Many fighters do use this as a mind game but, could something deeper in regards to our psychology be at play? In this segment we'll be looking at mixed martial arts fighters like Paulo Costa, Yoel Romero, and Robbie Lawler in-order to better understand why they end up often smiling and laughing when they are struck. Could the same premise Arnold Schwarzenegger used to feel euphoria in bodybuilding be applied to MMA? If so, that's maybe what these fighters are doing. When you understand, let's take a closer glance at Daryl Davis's story where he effectively takes hatred and turns it into love.