• Wed. May 29th, 2024

Researchers Discover Human Brains Are Increasing in Size


Mar 27, 2024

A team of scientists has found that human brains have been getting bigger over the years, indicating potential benefits for brain health as people age. Led by the University of California Davis Health, researchers studied MRI data of individuals born between the 1930s and 1970s. The study, published in JAMA Neurology, revealed that babies born in the 1970s had larger brain surface area and volume compared to those born in the 1930s.

The researchers analyzed brain scans from 3,226 subjects from the Framingham Heart Study, a health survey that began in 1948. Along with the increase in brain volume and surface area, they also observed that areas of the brain related to memory and learning had also grown in size. While larger brains may not necessarily equate to increased intelligence, researchers believe that having a bigger brain could be beneficial for brain health.

According to a study published in 2016 in The New England Journal of Medicine, the percentage of people newly diagnosed with Alzheimer’s Disease has decreased per decade, despite an overall increase in the number of patients as the population ages. This suggests that larger brain structures observed in the recent study could indicate improved brain development and health, potentially providing a buffer against age-related brain diseases like Alzheimer’s and dementia.

The findings suggest that having a bigger brain may offer protection against age-related brain diseases. This could be due to larger brain reserve and improved brain health, allowing for better brain function as individuals grow older. Further research and studies are needed to fully understand the implications of larger brains on brain health and cognitive function.

By editor

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