Low-density lipoprotein, often abbreviated as LDL, is a type of cholesterol found in the blood. It is commonly referred to as "bad" cholesterol because high levels of LDL can lead to the buildup of plaque in the arteries. This buildup can increase the risk of heart disease and stroke, making it important to monitor and manage LDL levels through diet and lifestyle choices. LDL carries cholesterol from the liver to the cells in the body. While cholesterol is essential for various bodily functions, too much LDL can be harmful. Regular check-ups and blood tests can help individuals keep track of their cholesterol levels and maintain a healthy heart.