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High cholesterol usually occurs without noticeable symptoms, making regular cholesterol screenings essential, especially for those over 20 or with risk factors. Managing cholesterol involves lifestyle adjustments like diet changes (limiting cholesterol, saturated and trans fats, and processed foods) and regular exercise, which can be supplemented with medications like statins if needed. High levels of LDL cholesterol can lead to plaque buildup in arteries, increasing the risk of serious complications such as heart attack and stroke. HDL cholesterol helps remove LDL, reducing these risks. (责任编辑：) |