Increased physical activity positively affects longevity by reducing the risk of chronic diseases such as heart disease, diabetes, and certain cancers. Regular exercise promotes cardiovascular health, strengthens muscles, and enhances metabolic function, all of which contribute to a longer, healthier life. Additionally, physical activity helps maintain a healthy weight and supports mental well-being, reducing stress and anxiety. Studies consistently demonstrate that those who engage in regular exercise tend to have better quality of life and longer lifespans.