Causes of high cholesterol
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Genetic Causes of High Cholesterol
High cholesterol can be caused by inherited genetic factors. Familial hypercholesterolaemia is a common inherited disorder where mutations in genes such as LDLR, APOB, and PCSK9 lead to abnormally high levels of low-density lipoprotein (LDL) cholesterol from birth, greatly increasing the risk of cardiovascular disease over time 15. Additionally, high levels of lipoprotein(a) and certain LPA gene variants are recognized as novel genetic risk factors for high cholesterol and related heart problems, especially in people with familial hypercholesterolaemia .
Lifestyle and Dietary Factors Leading to High Cholesterol
Unhealthy lifestyle choices are a major cause of high cholesterol. Diets high in total fat, saturated fat, sodium, and phosphorus, and low in fiber, potassium, magnesium, and calcium contribute to elevated cholesterol levels. Insufficient intake of most vitamins, except for B3 and B6, is also common among those with high cholesterol . Obesity, lack of physical activity, and poor dietary habits further increase the risk of developing high cholesterol and related cardiovascular diseases 123.
Age and Other Contributing Factors
Age is another important factor, as cholesterol levels and triglycerides tend to rise as people get older. Other contributors include hypertension (high blood pressure) and obesity, both of which are linked to higher cholesterol and increased risk of heart disease 23.
The Role of Lipoproteins in High Cholesterol
An imbalance between LDL ("bad") cholesterol and HDL ("good") cholesterol is central to the development of high cholesterol. High LDL cholesterol leads to plaque buildup in the arteries, which can cause atherosclerosis, heart attacks, and strokes 12. Elevated triglycerides are also commonly seen in people with high cholesterol .
Conclusion
High cholesterol is caused by a combination of genetic factors, such as mutations in LDLR, APOB, PCSK9, and LPA genes, and lifestyle factors, including unhealthy diet, lack of exercise, obesity, and aging. Regular screening and a heart-healthy lifestyle are essential for managing and reducing the risks associated with high cholesterol 1234+1 MORE.
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