Dementia Risk Trends Downward and Later in Life, Due in Part to Cardiovascular Health
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Research papers and popular science articles noting the ongoing decline in dementia risk have become a regular occurrence. Since dementia is driven in part by cardiovascular aging , it is tempting to suggest that this is a side-effect of the improvements in control over blood pressure and treatment of cardiovascular disease obtained in recent decades. From studies that have run the numbers, that incremental progress is as much due to reductions in smoking as it is to the deployment of successful medications such as statins. We do not yet live in an age in which medical technology has reliably outpaced lifestyle choice in the matter of aging and age-related disease. Interesting, those researchers who run the numbers on dementia suggest that improvements in cardiovascular health cannot explain all of the reduction in dementia risk.

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Cardiovascular decline contributes to dementia in a number of ways. Firstly, capillary networks spread throughout tissues become less dense, and so less able to deliver sufficient nutrients and oxygen to cells. Declining fitness

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