Good cholesterol, also known as high-density lipoprotein (HDL), helps to remove bad cholesterol from the bloodstream and transport it back to the liver, where it can be processed and eliminated from the body. Bad cholesterol, also known as low-density lipoprotein (LDL), can build up in the arteries and form plaques, which can lead to heart disease and stroke.
In general, higher levels of HDL or "good" cholesterol are associated with a lower risk of heart disease, while higher levels of LDL or "bad" cholesterol are associated with a higher risk of heart disease. It's important to note, however, that cholesterol levels alone are not always the best predictor of heart disease risk. Other factors, such as age, gender, family history, blood pressure and smoking status can also play a role. It's important to talk to a health care provider about overall heart disease risk and how to manage it.