Blood Test May Predict Dementia Years Before Symptoms…

Blood Test May Predict Dementia Years Before Symptoms Metabolomic Aging Clock Combined with Genetics Shows Promising Early Detection A blood-based "metabolomic aging clock" test could help forecast dementia onset years before symptoms appear, according to new research published May 19, 2026. The test measures how metabolic processes in the blood change with aging. When combined with genetic risk factors, it predicted dementia development with remarkable accuracy. This is a major step toward early intervention. Currently, dementia is diagnosed only after cognitive