Alzheimer’s disease is a type of dementia that mainly affects older persons. It is a progressive neurological ailment. Memory loss, cognitive decline, and behavioural abnormalities are its hallmarks, which eventually cause difficulties with day-to-day functioning. The biggest risk factor is age, with a rapid increase in occurrence beyond 65 years of age. Amyloid plaques and tau tangles are examples of aberrant protein deposition in the brain, albeit the precise cause is yet unknown. There is no known cure, however treatment attempts to lessen symptoms and delay the course of the illness. Multidisciplinary methods encompassing genetics, neurology, geriatrics, and public health initiatives are necessary to address the complexities of aging and dementia.