Nov 19, 2025 Yul So www.theguardian.com Scientists are building the most detailed “brain atlas” ever created, a map that could transform how we understand and treat conditions such as Alzheimer’s, Parkinson’s disease, multiple sclerosis, and autism. Although neurological illnesses affect about one-third of the world's population, little is understood about how the brain's 86 billion cells work and evolve throughout time. A series of studies published in Nature in November 202