There are several factors that can raise LDL cholesterol levels, including:

• Diet: Eating a lot of foods high in saturated fats, such as fatty cuts of meat and full-fat dairy products, can raise LDL cholesterol levels. Consuming too much sugar can also cause the liver to make more LDL cholesterol and triglycerides, and less HDL cholesterol.

• Weight: Being overweight tends to raise LDL levels, lower HDL levels, and increase total cholesterol levels.

• Physical inactivity: A lack of physical activity can lead to weight gain, which can raise LDL levels.

• Smoking: Cigarette smoking may lower HDL levels, the "good" cholesterol, and increase LDL levels.

• Medical conditions: Certain medical conditions, such as hypothyroidism and type 2 diabetes, can cause high LDL levels.

• Age: As you age, your liver becomes less able to remove LDL cholesterol, which can lead to higher levels.

• Heredity: High cholesterol can run in families, and some people may have a genetic predisposition to high LDL levels.

To lower LDL cholesterol levels, a heart-healthy diet, exercise, and quitting tobacco use are recommended. Medications may also be prescribed if lifestyle changes are not enough to bring cholesterol levels into a healthy range.