Research in action
Alzheimer's blood test could be a 'game-changer'
Published Aug 5, 2025 VideoThe early signs of Alzheimer's disease—more frequent memory loss, increased confusion—can be difficult to detect, often delaying diagnosis. That could change with an inexpensive and noninvasive blood test developed by a team that includes Johns Hopkins scientists and approved by the FDA in May. It's the first test of its kind to get such a clearance and stands to vastly increase opportunities for early detection and treatment.