High cholesterol levels are a result of modifiable and non-modifiable risk factors. Two major risk factors, diet and exercise, are highly modifiable, meaning that something can be done to change these risk factors and reduce the likelihood of having high cholesterol. Being overweight or obese can also lead to higher blood LDL levels, with regular exercise helpful in managing this risk factor. The primary causes of high cholesterol are genetic - very high LDL levels are found in the inherited condition familial hypercholesterolemia. Abnormal cholesterol levels may also be secondary to the following:5,6 Diabetes Liver or kidney disease Underactive thyroid gland. Drugs that increase LDL cholesterol and decrease HDL cholesterol (progestins, anabolic steroids and corticosteroids). you should follow following precaution for maintain cholestrol level normal because these are main risk factor for cholesterol increase. Eat a heart-healthy diet (for example, use low-fat toppings and sauces, and avoid foods high in saturated fat; eat vegetables, fruits and fiber-rich whole grains) Take regular exercise Avoid smoking Achieve and maintain a healthy weight. Limiting intake of fat in the diet helps manage cholesterol levels. In particular, it is helpful to limit foods that contain: Food sources of cholesterol Meat, cheese and egg yolks are sources of cholesterol. Cholesterol (from animal foods, such as egg yolks, meat and cheese) Saturated fat (found in some meats, dairy products, chocolate, baked goods, and deep-fried and processed foods) Trans fat (found in some fried and processed foods). if,you do exercise for 1 hour regularly in morning,it is surely keep cholesterol maintain.