How does high blood pressure affect kidney function?
High blood pressure (hypertension) and kidney disease are locked in a dangerous, cyclical relationship. High blood pressure is the second leading cause of kidney failure , but kidney damage itself can also cause blood pressure to rise even further. To understand why they affect each other so deeply, it helps to realize that your kidneys are essentially one massive, intricate network of blood vessels. Every day, they filter about 120 to 150 quarts of blood to remove waste and extra fluid. The Damaging Mechanism When the pressure of the blood moving through your body is consistently too high, it inflicts physical, structural damage on the kidneys through a step-by-step process: 1. Hardening and Narrowing of Vessels Just like water pipes facing too much pressure, the walls of the arteries leading into and inside your kidneys react by thickening and stiffening to withstand the force. The Result: As the vessel walls thicken, the internal space inside the "pipe" narrows. This dra...