Why does blood pressure remain elevated after initial sympathetic nervous system activation subsides in essential hypertension?

💡 Explanation

Vascular remodeling involves structural changes in blood vessel walls, causing sustained vasoconstriction and increased peripheral resistance, which maintains elevated blood pressure, because the vessel structure itself is altered, not just transiently constricted. Therefore, the blood pressure remains high, rather than returning to normal as vasodilation, vagal tone, or sodium excretion would suggest.

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