Suresh Rao Suresh Rao Asked 7 months ago

What causes a sudden heart attack?

My colleague, who seemed perfectly healthy, had a sudden heart attack last month. It was a big shock for everyone. I'm trying to understand, what causes a sudden heart attack like that?

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6 answers

Aditya Rao Aditya Rao Joined Jan 2026 7 months ago
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I once rushed to the ER with severe chest tightness, convinced I was having a sudden attack, but it was just terrible acidity from late-night street food. While a real attack is caused by sudden blockage of blood to the heart muscle, don't panic immediately over every pain. Keep calm and get an ECG done to be sure.

Harish Johar Harish Johar Joined Apr 2026 6 months ago

At my age, I have seen many friends face this issue. It usually happens when plaque builds up in the arteries over many years and suddenly ruptures. Take it from my experience, if you walk daily and avoid heavy oily foods, your heart will stay strong. Don't worry too much, just lead a disciplined life.

Siddharth Kaul Siddharth Kaul Joined Jun 2026 4 months ago

Listen to me, don't stress yourself reading scary things online. A sudden heart attack is usually caused by a clot blocking blood flow, often triggered by long-term high BP or extreme sudden stress. If you are feeling any chest discomfort or pain radiating to your arm, let's not wait around, please go to a doctor right away, okay?

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Consult a cardiologist

Pooja Hegde Pooja Hegde Joined Mar 2026 7 months ago

It is mostly caused by a sudden blood clot blocking the coronary artery. Definitely get a doctor's opinion if you're worried about symptoms.

Meera Krishnan Meera Krishnan Joined Feb 2026 7 months ago

Sudden heart attacks happen when a cholesterol plaque in your artery cracks, and a clot forms there instantly, cutting off blood supply. I always tell people on this forum to monitor their cholesterol and stress levels annually. A simple lipid profile test can tell you so much about your risk.

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Sameer Alvi Sameer Alvi Joined May 2026 5 months ago

According to my cardiologist, a sudden myocardial infarction is caused by the rupture of a vulnerable lipid-rich plaque in the coronary arteries, which triggers a rapid thrombotic occlusion. He emphasized that underlying chronic inflammation, smoking, and high blood pressure are the silent triggers that make these plaques unstable.

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