Being physically active significantly affects cholesterol levels by promoting a healthier balance between high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol. Regular exercise, such as aerobic activities, can help lower LDL (often referred to as "bad cholesterol") and triglycerides while raising HDL (the "good cholesterol"). This positive shift reduces the risk of cardiovascular diseases and contributes to overall heart health. Additionally, physical activity improves blood circulation and endothelial function, further enhancing cholesterol metabolism and supporting a healthier lipid profile in the body.