Cholesterol is another word for the fats contained in your blood. Not all cholesterol will have a negative effect on your health, though, and you need to know the difference between “good” cholesterol and “bad” cholesterol.
HDL (high-density lipoprotein) is what is known as “good” cholesterol. This substance helps to keep the levels of bad cholesterol down and can help to decrease your risk of developing heart disease.
LDL (low-density lipoprotein) is the “bad” cholesterol you need to be wary of. This is the type that can build up in your arteries and cause them to become narrower over time.