We See every thing upside down and our nerve paths are crossed left to right

Our Tae Kwon Do teacher says that this is the reason why it is so hard to learn sequences on one side of the body than the other. We can learn a sequence of moves starting with the right hand - or foot. When we turn around and start with the left, we find it difficult. According to David Brown in the Washington Post the fact that the right side of our brains controls the left side of the body provides a natural advantage.