Name: 心臟病發作的原因是什麼？ | #aumsum (What causes heart attacks? | #aumsum)
Uploaded: 2025-12-08T10:50:14.000Z
Duration: 1 min 38 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

A heart attack or myocardial infarction is the complete blockage of blood flow to a part of the heart.

A network of blood vessels called coronary arteries.

Continuously supply oxygenated blood to muscle cells of heart to keep them working properly.

However, due to bad lifestyle choices and stress.

Cholesterol and fats start building in these arteries reducing blood flow to the muscle cells.

Plaque is the main culprit behind most heart attacks.

When plaque ruptures, a blood clot forms around it causing the artery to get completely blocked.

The blood then cannot pass further to that part of the heart.

Thus, due to lack of oxygen, the muscle cells in that part die.

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