What is the most prevalent form of dementia?

Alzheimer's disease is recognized as the most prevalent form of dementia, accounting for a significant majority of dementia cases among older adults. It is characterized by progressive cognitive decline, affecting memory, thinking, and behavior. The disease is marked by the accumulation of amyloid plaques and neurofibrillary tangles in the brain, which contribute to neuronal death and dysfunction.

The distinction of Alzheimer's as the most common type is supported by numerous studies and classifications used in both clinical and research settings. It is estimated that around 60-80% of all individuals with dementia have Alzheimer's disease. This prevalence underscores its public health significance, as it affects millions of individuals and their caregivers worldwide.

In contrast, while vascular dementia, frontotemporal dementia, and pseudodementia are also important types of dementia with distinct pathologies and characteristics, they occur less frequently compared to Alzheimer's disease. Vascular dementia is often a result of reduced blood flow to the brain and is typically associated with a history of strokes or other vascular issues. Frontotemporal dementia primarily impacts younger individuals and is associated with changes in personality and behavior. Pseudodementia, which can resemble dementia but is actually a manifestation of underlying depression, is also less common. These conditions, while critical to understand