Heavy TV watching associated with smaller brain structures, study finds
A study published in Alzheimer’s and Dementia suggests that frequent television viewing in midlife is linked to reduced brain volume and cognitive decline. Researchers noted that these structural brain changes were specific to TV watching rather than general sedentary behavior.
Why it matters
The findings challenge the assumption that all sedentary activities are equally harmful, suggesting that the cognitive engagement level of leisure activities impacts long-term brain health.
Copy Link Facebook X LinkedIn Bluesky Email “Turn off that TV, it’ll rot your brain!” has been a household refrain for decades. While “rot” might be too strong a term, researchers are finding that the overall sentiment could have some merit.
A study published recently in Alzheimer’s and Dementia: Journal of the Alzheimer’s Association revealed that those who reported watching TV “very often” in midlife later exhibited reduced volume in areas of the brain associated with memory, smaller frontal and occipital lobes, and areas of damage in the brain’s white matter that are associated with aging, stroke risk, cognitive decline and dementia.
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