Cholesterol affects cardiovascular health by playing a role in plaque buildup in arteries. High levels of low-density lipoprotein (LDL) cholesterol can lead to atherosclerosis, increasing the risk of heart disease and strokes. On the other hand, high-density lipoprotein (HDL) cholesterol helps transport cholesterol away from arteries to the liver for excretion, contributing to a healthier cardiovascular system. Therefore, maintaining an appropriate balance between LDL and HDL is crucial for optimal heart health. Diet, exercise, and lifestyle choices can significantly influence cholesterol levels, affecting overall cardiovascular wellness.