Throughout life, all the body's organs disintegrate and lose their capacity to play out their capacities ideally, particularly the mind. For this reason, many people are adopting habits to stay in shape and prevent their quality of life from deteriorating in the long term. However, few pay enough attention to their mental health. And it is usually one of the most affected in old age. If not trained, it can lead to several mental problems, memory loss, or difficulty sleeping. Good habits in youth and maturity are one of the keys to generating resistance to neurodegenerative diseases. But being aware of the importance of all this in the long term is not our strength. Bad habits in middle age can have serious repercussions decades later, generating cerebrovascular problems or increasing the risk of dementia. The brain is everything. We are our brains. When our brain fails, it is called brain death. The scientific community has accepted that when the brain stops working irreversibly, the subject has died. It is the fundamental part that makes us human beings or independent individuals, and therefore, it is essential to take care of it. In our genome, we have programmed a series of functions for the activities or events around us. But evolution invented a system that was adaptable to the circumstances that exist. If a predator appears, the subject was able to recognize it and flee or hunt it down. It is an evolutionary invention. The nervous system has managed to reach the civilization of the human being. You can have a great brain and cognitive function despite the passage of time. It is possible, thanks to the adoption of good habits. To make your brain work, you have to know it well. When you know how it works, you will develop activities to keep your brain in shape. Also, it is a process that involves concentration, self-learning, etc. It is all that you are going to see in this book. Take a little time to read it. In this book, you will discover a secret about how to train your brain, which is like any other body part, to get it in shape.