Which of the following health risk factors cannot be improved through a regular exercise program?

Certain genetic disorders, such as arthritis, are rooted in an individual's genetic makeup and typically cannot be improved or cured through exercise alone. While regular physical activity can help manage some symptoms associated with these conditions, such as maintaining joint mobility and reducing stiffness, it does not alter the underlying genetic factors that contribute to the disorder. Therefore, while exercise can play a significant supportive role in enhancing quality of life for individuals with such genetic disorders, it cannot fundamentally change or improve the genetic predisposition itself.

In contrast, regular exercise is effective at reducing resting blood pressure, lowering resting heart rate, and managing stress levels through physiological adaptations and improvements in overall health. These factors are influenced by lifestyle choices and can be modified with consistent engagement in fitness activities. Regular exercise can enhance cardiovascular conditioning, which influences heart rate and blood pressure positively, and it can also serve as a powerful tool for stress relief.