Your voice may reveal how fast you're aging, new AI 'speech clock' suggests

Key Points:

• Researchers have developed an AI tool that analyzes speech patterns to estimate a person's chronological age and identify those at risk of cognitive problems and dementia, based on a study of nearly 3,000 Spanish-speaking adults.
• The tool measures over 700 speech features, including pauses, pitch, and vocabulary, to calculate a "speech-age gap," with larger gaps linked to cognitive impairment, dementia, accelerated biological aging, and poorer social and economic conditions.
• Unlike traditional aging clocks that require expensive or invasive tests, this speech-based method offers a potentially accessible and noninvasive way to assess brain health, though it currently requires further validation over time and in other languages.
• Experts caution that speech changes can be influenced by factors like depression or stress, so the tool should complement, not replace, clinical assessments for dementia diagnosis.
• Future research aims to adapt the model for other languages and conduct longitudinal studies to determine if speech changes can predict cognitive decline before symptoms appear.