<p><br></p><p><strong>A heart attack,</strong> medically known as myocardial infarction, occurs when the blood flow to a part of the heart muscle is blocked, usually by a blood clot. This blockage leads to damage or death of the heart muscle cells due to the lack of oxygen and nutrients.</p><h2>Causes/Reasons:</h2><p>The most common cause of a heart attack is the formation of atherosclerosis, where fatty deposits (plaques) build up in the coronary arteries, reducing blood flow. The plaque can rupture, leading to the formation of a blood clot that may completely block the blood flow to the heart.</p><h2>Risk Factors:</h2><ul><li>Smoking</li><li>High blood pressure</li><li>High cholesterol</li><li>Diabetes</li><li>Obesity</li><li>Sedentary lifestyle</li><li>Family history of heart disease</li><li>Age (risk increases with age)</li></ul><p><br></p>

What are the risk factors for heart disease?

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