The majority of cases of sudden cardiac death are due to coronary artery atherosclerotic heart disease, causing extensive myocardial infarction, hence these patients often have precursors. Some individuals experience acute coronary syndrome due to inflammatory changes, leading to thrombosis; others, such as young people without any underlying conditions, might also experience this, often due to poor lifestyle habits like high stress and lack of sleep among other triggers. Most patients exhibit warning signs, including chest tightness, chest pain, and palpitations – symptoms of heart disease. When these problems occur, it is crucial to promptly visit a hospital for examination to determine if there are issues with the coronary arteries, and if so, to receive timely treatment and intervention.