Alzheimer’s disease (AD) is the most prevalent neurodegenerative disorder causing dementia in older adults, characterized by progressive brain degeneration that occurs across all clinical stages.Key features of Alzheimer’s disease include the loss of neurons and synapses in targeted areas of the brain, including cerebral cortex and subcortical areas, leading to characteristic cognitive decline. The development of these AD markers is linked to a number of mechanisms, including apolipoprotein E, the mechanism of amyloid B processes leading to the neurodegenerative processions, protein Tau, and the cholinergic hypothesis. Genetic imprint factors are also considered familial legacy. Although there isn’t a cure for AD, there are medication therapies that can help with a number of its symptoms. Amyloid β and protein Tau-targeting therapies are two examples of therapeutic approaches that concentrate on specific cellular pathways that can cause Alzheimer’s disease. However, research is still ongoing to alleviate the symptoms of the disease or try to control it.