LDL is an important component of blood lipids. High LDL may be related to genetic inheritance, dietary habits, lack of exercise and other factors. 1. Genetic inheritance: High LDL is usually closely related to genetic factors, mainly due to abnormalities in hepatic cholesterol synthesis and metabolism. People with inborn metabolic disorder genes can have high LDL. 2. Dietary habits: People who consume too much greasy food and less fresh fruits and vegetables can also have high LDL levels. 3. Lack of exercise: people who are often sedentary and lack exercise on weekdays are prone to over-nutrition and fat accumulation, leading to obesity and a rise in LDL can occur at the same time. People with high LDL should pay attention to diet and exercise. If there is no improvement, professional treatment should be carried out.