Regular physical activity positively influences cholesterol levels by increasing high-density lipoprotein (HDL), often referred to as "good" cholesterol, while reducing low-density lipoprotein (LDL) or "bad" cholesterol. Exercise enhances lipid metabolism and promotes overall cardiovascular health. Activities like aerobic exercises, including running or cycling, have shown to improve lipid profiles significantly. Improved cholesterol levels contribute to a reduced risk of heart disease and can enhance overall health outcomes, making regular exercise a crucial component of maintaining heart health.