Regular exercise provides numerous *protective effects* against chronic diseases by improving cardiovascular health, enhancing metabolic function, and supporting weight management. Engaging in physical activity can lower the risk of conditions such as type 2 diabetes, heart disease, and certain cancers. Exercise improves insulin sensitivity and helps regulate blood pressure and cholesterol levels. Furthermore, physical activity can strengthen the immune system, enhancing its ability to fight infections. Overall, a consistent exercise regimen is vital for sustaining good health and preventing the onset of chronic diseases.