• Mon. May 20th, 2024

Growing Brains: Study Reveals Increase in Brain Surface Area and Volume Could Stave off Dementia as People Age

BySamantha Nguyen

Mar 27, 2024
Researchers discover that human brains are growing bigger each generation

A study led by the University of California Davis Health has revealed that human brains have been growing over the years, which could help stave off dementia as people age. The researchers analyzed MRIs of individuals born from the 1930s to the 1970s and found that babies born in the 1970s had nearly 15 percent more brain surface area and 6.6 percent more brain volume than those born in the 1930s. The study used MRI data from the Framingham Heart Study, which has been ongoing since 1948, and included brain scans from 3,226 subjects.

The researchers also observed growth in parts of the brain associated with memory and learning. While larger brains may not necessarily equate to higher intelligence, having a larger brain could be beneficial for overall brain health. In fact, a study published in 2016 in the New England Journal of Medicine found that although the number of Alzheimer’s disease patients has been increasing with age, the percentage of newly diagnosed individuals has actually decreased per decade. This suggests that there may be other factors at play when it comes to cognitive decline and dementia risk.

UC Davis professor of neurology and study first author Charles DeCarli believes that larger brain structures could reflect improved brain development and health, creating a larger “brain reserve” that could potentially protect against age-related brain diseases like Alzheimer’s and related dementias. While more research is needed to fully understand this potential link between brain size and cognitive decline, these findings hint at a promising avenue for future research on aging and cognitive health.

By Samantha Nguyen

As a content writer at newsskio.com, I weave words to craft compelling narratives that captivate readers and bring stories to life. With a keen eye for detail and a passion for storytelling, I strive to create engaging and informative content that resonates with our audience. Whether I'm delving into the latest news trends or exploring unique angles on various topics, my goal is to deliver quality content that informs, entertains, and inspires. Join me on this journey as we uncover the news stories that matter most.

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