For 50 years, the institute has led a broad scientific research effort to understand the nature of aging and to extend the healthy, active years of life. NIA is also the primary federal agency supporting and conducting Alzheimer's disease and related dementias research.

Read about assessing patients with memory loss or other signs of cognitive impairment.

Explore the Alzheimers.gov website for information and resources on Alzheimer’s and related dementias from across the federal government.