Recent research suggests that changes in the shape of your brain, rather than just its size, could indicate early signs of dementia. Scientists at the University of California, Irvine, and the University of La Laguna in Spain studied over 2,600 MRI brain scans from individuals aged 30 to 97. They found that as people age, the overall shape of the brain shifts in specific patterns. Notably, areas at the back of the brain tend to shrink more in those who show signs of cognitive decline, such as di