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New research from the University of the Sunshine Coast’s Thompson Institute has found a relationship between lifestyle choices that affect dementia risk, and early signs of ageing on the brain, informs the aforesaid university.
Researchers discovered reduced white matter volume and an imbalance in electrical activity in the brains of participants whose lifestyle factors were linked to a higher risk of dementia. Lead author of the study, Dr Thomas Pace, said it appeared factors like dietary habits, sleep patterns and physical activity levels, could already be affecting the brain before any signs of cognitive decline..
Dr. Pace and his colleagues found a relationship between a person’s lifestyle choices, their brain health, and their future dementia risk.
To test this, Dr. Pace and his colleagues used CogDrisk—an online tool developed by Neuroscience Research Australia and the University of New South Wales—to give participants a dementia risk score based on their demographics and lifestyle factors.
“By controlling for non-modifiable factors like age, sex and education in the scoring, we were able to focus specifically on the dementia risk posed only by a participant’s lifestyle,” Dr. Pace said. “We then employed brain-scanning tools like Magnetic Resonance Imaging (MRI) to examine brain structure, electroencephalography (EEG) for electrical brain activity, and a series of cognitive tests to assess memory and thinking abilities. What we found was that even in very healthy older adults, higher modifiable dementia risk was connected to two major indicators of brain health—white matter and the brain’s ability to balance its electrical activity. White matter volume has been well established as a measure for early brain ageing. But the other marker—the exponent that measures balance of electrical activity in your brain—was new."