What can brain phases tell us about our stage of life?

Scientists have discovered our brain organizes itself differently based on different life stages, with some stages working more efficiently than others. A new study from the University of Cambridge identified five main brain "eras" - child, adolescent, adult, early ageing, and late ageing. We speak with the lead author of the study to find out more about these stages and what this research might mean for mental health and dementia research.