One way exercise helps reduce risk of cardiovascular disease

• A. Weakens immune system
• B. Increases blood pressure
• C. Strengthens immune system
• D. Reduces lung capacity

Answer: (C)

Regular physical activity lowers cardiovascular disease risk in several ways, and strengthening the immune system is one important mechanism. A healthier immune system helps tame chronic inflammation and improves the body’s ability to fight infections. Chronic inflammation is a factor in the development of atherosclerosis, the buildup in the arteries that raises heart disease risk, so supporting immune function through regular, moderate exercise helps protect the heart. Moderate exercise also improves other heart-protective factors like blood pressure, cholesterol, and insulin sensitivity, further reducing risk. In contrast, choices that weaken immunity, raise blood pressure, or reduce lung capacity would not help and would likely increase cardiovascular risk.