How your heart works: two pumps, one spark, and what a heart attack really is
Clogged arteries: what really builds up inside them
A clogged artery can grow for decades with no sign, and it often starts in the teenage years. Where does it grow, and how does it hide?
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Let's go inside one coronary artery of Miva's uncle, many years before tonight. Its wall is smooth on the inside, and blood rushes along.
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Most people picture a clogged artery like a kitchen pipe, with fat stuck on the inside. That is not where the trouble grows.
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