Summary:

- The article discusses a revolutionary new method that can identify the risk of dementia for under $1. This method involves analyzing a person's eye movement patterns, which can be an early indicator of cognitive decline.

- The study, conducted by researchers at the University of Cambridge, found that by tracking eye movements during a simple computer-based task, they could predict with high accuracy whether a person would develop dementia within the next 2.5 years.

- This low-cost and non-invasive approach could potentially enable early detection of dementia, allowing for earlier interventions and better management of the condition. The researchers believe this method could be a game-changer in the field of dementia research and care.