Periodic blood tests to monitor cholesterol levels are a routine part of medical care for adults age 20 and older. Results are broken down into four categories: total cholesterol, triglycerides, HDL and LDL. It can be difficult to discern what is good, what is bad and what it all means.

HDL Facts

HDL cholesterol, otherwise known as high-density lipoprotein, is considered the "good" kind of cholesterol since it removes extra cholesterol from your blood. According to the American Heart Association (AHA), having high HDL levels offers protection for your heart and arteries.

LDL Facts

LDL cholesterol, or low-density lipoprotein, is the "bad" cholesterol that accumulates in your arteries. According to the AHA, lower LDL levels correspond with having a lower risk of stroke and heart attack.

Recommended HDL and LDL Levels

The American Heart Association recommends HDL levels higher than 60 mg/dL and LDL levels lower than 100 mg/dL.

The Cost of Low HDL/High HDL Levels

The cost of having low HDL and high LDL levels includes the accumulation of plaque in your arteries, inflammation in your arteries and obstructed blood flow. Having low HDL levels increases your risk of cardiac problems. Having high LDL levels indicates the same.

Now What

High HDL levels and low LDL levels indicate that your cholesterol levels are in a healthy range; however, you should still engage in regular exercise, eat a healthy diet and avoid smoking and overindulging in alcohol to maintain your good cholesterol levels.

Source:

American Heart Association: Cholesterol Levels Explained

Mayo Clinic: High HDL Levels