Global health particularly takes into account the natural aging process that accompanies economic, healthcare, and social development. In this perspective, it is essential to prevent and delay neurodegeneration as much as possible, prolonging health, autonomy, and happiness in the third and fourth age. While the study of drugs capable of countering symptoms and slowing the progression of neurodegenerative diseases is ongoing, prevention plays a crucial role. It is possible to invest in brain health through proper lifestyles, including physical activity, healthy nutrition, constant cognitive stimulation, and, as much as possible, protection from pollution and stress.