“Your kidneys and circulatory system depend on each other for good health. The kidneys help filter wastes and extra fluids from blood, using a lot of blood vessels. When the blood vessels become damaged, the nephrons that filter your blood don’t receive the oxygen and nutrients they need to function well. This is why high blood pressure is the second leading cause of kidney failure.”

heart.org (https://www.heart.org/en/health-topics/high-blood-pressure/health-threats-from-high-blood-pressure/how-high-blood-pressure-can-lead-to-kidney-damage-or-failure)