What is the relationship between HDL and LDL cholesterol levels in the body and how do they impact overall health?

HDL (high-density lipoprotein) and LDL (low-density lipoprotein) are two types of cholesterol in the body. HDL is considered "good" cholesterol as it helps remove LDL, the "bad" cholesterol, from the arteries. High levels of LDL can lead to plaque buildup in the arteries, increasing the risk of Heart disease. On the other hand, high levels of HDL are associated with lower risk of heart disease. Therefore, maintaining a balance between HDL and LDL levels is important for overall heart health.