Alzheimer’s is a neurodegenerative disease that usually develops very gradually and is very complex. From seemingly insignificant problems with concentration, through small memory loss to the development of dementia disorders noticeable by everyone else. The causes of Alzheimer’s have not been fully understood; hence it is impossible to present one effective one way to prevent it. However, the development of medical sciences, the involvement of scientific teams around the world and the results of their latest research shed some light on the mechanism the development of Alzheimer’s disease and hence in ways to prevent it.