The book, exploring the brain, tells about an unusual, guided journey in the world of safety: at work and in one's social life, free time and with family. The complex mechanisms of our unusual attitudes when we are at work and why we behave superficially in the face of certain risks are explained. The secrets for changing one's behaviour are revealed, especially when the latter takes on a toxic character. The author tackles from a practical point of view revisited with neuroscience, issues such as Over Confidence and Mental Shortcuts. For the first time we will read about the Human Black Factory, an innovative concept literally torn from the world of finance. The Hidden or Black Factory, well known in financial circles, is a real scientific discovery to the point of influencing the results and strategies of international giants.