The brain is the highest complicated organ of the human body. Doctors and researchers are bringing to light many unknown facts about the brain everyday that we did not know about earlier. Even though researchers are trying to make the whole process of brain simpler, but it remains a highly complex zone. Researchers are also finding ways to use the mind to its full ability for maximum efficiency. However, in most cases that is not possible. Studies show that an average-intelligent human being uses 10% of the brain he can use, and an overly intelligent human being uses a maximum of 15% of the brain he could use. Thus, if a man would use 100% of the mind to solve problems or do any other work, then the world would have improved much.