Alzheimers Epidemiology

Alzheimer's disease, a progressive neurodegenerative disorder, poses a significant global health challenge. It primarily affects older adults, with the risk increasing with age. Globally, an estimated 50 million people were living with dementia in 2021, with Alzheimer's disease comprising 60-70% of cases. This prevalence is expected to rise as populations age, potentially reaching 152 million by 2050. Geographically, prevalence rates vary, with higher incidences observed in developed regions due to longer life expectancies and improved diagnostic capabilities. In the United States alone, over 6 million people aged 65 and older are living with Alzheimer's. Understanding these epidemiological trends is crucial for healthcare planning, resource allocation, and advancing research efforts aimed at prevention and treatment.