Which statement best describes the role of a healthy lifestyle in longevity?

A healthy lifestyle plays a crucial role in longevity, significantly increasing life expectancy through various mechanisms. Engaging in regular physical activity, maintaining a balanced diet, managing stress, and avoiding harmful behaviors like smoking and excessive alcohol consumption contribute to overall health. These lifestyle choices support the body’s immune system, reduce the risk of chronic diseases such as heart disease and diabetes, and promote mental well-being.

Research consistently shows that individuals who engage in healthy behaviors tend to have longer, healthier lives. While genetics do play a role in life expectancy, lifestyle choices can modify how genetic predispositions affect health outcomes, illustrating that they are not the sole determinants of lifespan. This makes the significance of a healthy lifestyle even more pronounced in discussions about longevity.