Risk factors for high cholesterol include smoking, obesity, lack of physical activity, high blood pressure, diabetes and a family history of heart disease. Even young children can have high cholesterol.

There is a blood test to check cholesterol levels. Discuss with your physician whether you should have this test (called a lipid panel or lipid profile) which requires fasting for nine to 12 hours before blood is drawn. The American Heart Association states that while everyone should start getting a cholesterol test at age 20, it's a good idea to start having cholesterol checked at an earlier age.

The good news is that high cholesterol may be preventable - and treatable. Experts say regular exercise and a healthy diet help to fight high cholesterol. Medication is also available for lowering cholesterol levels.