The purpose of this legislation, known as the Alzheimer's Screening and Prevention Act of 2025, is to expand Medicare coverage to include blood-based tests that can detect Alzheimer's disease and related dementias at an early stage. The goal is to improve early detection and potentially enhance treatment options for individuals who may be developing these conditions. Key provisions of the legislation include the formal inclusion of Alzheimer's disease and related dementias early detection screening tests in the list of services covered by Medicare.