Low-Density Lipoprotein (LDL) is a type of cholesterol found in the blood. It is often referred to as "bad" cholesterol because high levels of LDL can lead to the buildup of plaque in the arteries, increasing the risk of heart disease and stroke. LDL carries cholesterol from the liver to the cells, but when there is too much, it can cause health problems. Maintaining healthy levels of LDL is important for overall cardiovascular health. Regular exercise, a balanced diet low in saturated fats, and avoiding tobacco can help manage LDL levels. Healthcare providers often monitor LDL levels through blood tests to assess heart health.