In addition to its effect on muscle growth, exercise upregulates a range of maintenance processes, such as autophagy, that improve tissue function when maintained over the long term. Lack of exercise in later life accelerates the decline in muscle mass and strength, an issue that appears reversible to a degree that might surprise most people. A similar situation occurs with respect to stiffening of blood vessels, in that while much of this depends on mechanisms such as cross-linking and presence of senescent cells, some of the decline is a matter of being sedentary. The interesting finding in the open access study noted here is that while long term physical exercise is associated with lower blood pressure and lesser degrees of arterial stiffness, having sedentary people undertake
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https://healthnews010.wordpress.com/2019/10/08/data-on-exercise-as-a-treatment-for-age-related-arterial-stiffness/
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