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Study links excessive TV to dementia
A recent study shows that excessive television viewing is linked to changes in brain structure, especially in men, which may increase the risk of cognitive decline and dementia as age progresses. The findings indicate that individuals who habitually watch a lot of TV tend to have smaller sizes in brain regions associated with early markers of Alzheimer's disease, along with an increase in white matter hyperintensities and a decrease in the volume of the frontal and posterior lobes responsible for planning and decision-making. These changes were found to be more pronounced in men and may be related to differences in sitting patterns or biological and behavioral factors between genders. The study also confirmed that mental activities while seated, such as reading and manual work, can enhance cognitive reserve and protect against age-related effects, whereas the duration of sitting alone is not the primary factor. Researchers emphasized the importance of reducing continuous TV watching periods and engaging in brain-stimulating activities to preserve cognitive health in the future.
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