Even a small daily increase in ultra-processed foods may quietly erode attention span and boost dementia-related risks. Credit: Shutterstock A new study suggests that eating more ultra-processed foods could make it harder to stay focused and may contribute to factors linked to dementia, even among people who otherwise follow healthy diets. Researchers from Monash University, the University of São Paulo, and Deakin University analyzed dietary and cognitive data from more than 2,100 middle-aged