Hardening and thickening of small arteries, reducing blood flow to tissues.
From arterio- (artery) + -olo- (small) + sclerosis (hardening). Combines Greek arteria with Modern Latin medical terminology. The condition describes pathological changes specifically in smaller blood vessels.
This disease is particularly nasty because it affects the tiny arteries that feed organs like your kidneys and brain—when they harden, those organs start starving for oxygen, which is why it's linked to kidney failure and stroke.
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