Ghedir RayeneChekhabe ImeneEncadreur: DEROUICHE.F2024-07-212024-07-212020-08-25576/017-Thttp://dspace.univ-khenchela.dz:4000/handle/123456789/6166Abstract Alzheimer's disease is a neurodegenerative disease of brain tissue that causes progressive and lasting deterioration of cognitive functions, due to specific neuropathological lesions. It is the most common cause of dementia and represents a real public health problem. It is a complex and multifactorial disease, which means that several factors influence the risk of its occurrence. In this memory, we are interested in the pathophysiological description of Alzheimer's disease, its symptoms and its evolution, genetic and environmental factors, diagnoses and the therapeutic method used to care for people with this diseasefrThesis