the.com/atherosclerosis

A disease where fatty deposits build up in artery walls, narrowing them and restricting blood flow.

means A disease in which fatty deposits (plaques) build up inside artery walls, making them stiff and narrow and restricting blood flow.

from Built from Greek athera, meaning 'gruel' or 'porridge' — a vivid nod to the soft, mushy fatty core of the plaques — plus sklerosis, 'hardening,' from skleros, 'hard.' So the word itself is a tiny, unglamorous diagnosis: porridge, then hardening. It entered medical use as doctors in the 19th and early 20th centuries pieced together that artery disease involved both a fatty, gruel-like buildup and a stiffening of the vessel wall — two Greek words stitched together to describe one slow catastrophe.

starts
childhood plaque buildup begins surprisingly early
mechanism
cholesterol, immune cells, scar tissue harden artery walls
silent killer
often symptomless until a heart attack announces it
reversible-ish
diet and statins can slow, rarely fully undo it
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