Speech as a clock for the aging brain

Where it stands as of Oct 28, 2026

A Science Advances study of nearly 3,000 adults across Latin America used automated analysis of short voice recordings to produce a speech age that ran older in people with dementia. The gap between speech age and real age was linked to brain-scan and DNA-based aging measures, a blood marker of Alzheimer's, and lifetime social hardship. The study reports links across a large group, not a cutoff that diagnoses any one person.