Perhaps this is why we sum up and judge people within the first 7 seconds of meeting them. We’re not really meeting them; we’re meeting someone from our past or someone that falls out side of our beliefs system. Think about it: what in the world could we possibly know about most people in only 7 seconds?
Unfortunately, most of us only think about the “why” after we do something self-diminishing, not before. But, to change undermining beliefs and habits, we will need to think about them before undermining ourselves. In fact, as we shall see, we need to completely change our thinking in some areas, thus changing our brains.