positve thinking

I am interisted about the powers of the brain caused by positive thinking. I beleive that by thinking positivly we unlock power that otherwise we would not have. I do not mean like flying or having super powers. I mean like going through life and not worrying about anything. Like getting good grades at school or university. I am reading a book by Norman Vincent Peale called The Power Of Positive Thinking. Some times affiramrations can help you to feel beter. follow this link for more information