"Rising Brain Sizes in Younger Generations Linked to Lower Dementia Risk"

A new study from the University of California analyzing data from the Framingham Heart Study suggests that human brains have been increasing in size between the 1930s and 1970s, potentially reducing dementia risk. The research found significant increases in various cerebral measures over time, with larger brain structures possibly reflecting improved brain development and health. While genetics play a major role in brain size, external influences such as health, social, cultural, and educational factors may also contribute. However, brain size is just one piece of the puzzle, and further research is needed to understand the impact on dementia risk, particularly in more diverse cohorts.