The human mind has the ability to change to and modifyto the changes in their environment. The brain is the very center of the nervous system. It’s the most complex body organ of the entire body. When compared with other body organs, the brain is so extraordinary because it is the one that builds the mind. Based on an evolutionary-biological viewpoint, the functionality of the human brain is to apply centralized command over the other parts of the human body. That is why the human brain is the most crucial body organ for you to perform properly.