DOT Certification Practice Exam

What is considered a key lifestyle change for reducing CHD risk?

1. Increasing age

2. Regular physical activity

3. Family medical history

4. Medication adherence

The correct answer is: Regular physical activity

Regular physical activity is considered a key lifestyle change for reducing the risk of coronary heart disease (CHD). Engaging in consistent physical activity helps to strengthen the heart muscle, improve blood circulation, and manage body weight, all of which can contribute to lowering blood pressure and cholesterol levels. Furthermore, exercise can enhance insulin sensitivity and reduce inflammation, both of which are beneficial for cardiovascular health. The impact of regular physical activity on reducing the risk of CHD is supported by numerous studies that demonstrate a clear link between an active lifestyle and a reduced incidence of heart-related issues. This lifestyle change can be easily incorporated into daily routines and can have significant long-term benefits, making it a fundamental component of heart disease prevention strategies. In contrast, increasing age is a natural risk factor that cannot be modified, while family medical history is outside an individual's control but can guide preventive measures. Medication adherence is important for managing existing health conditions but does not constitute a lifestyle change. Thus, regular physical activity stands out as a proactive and essential approach to reducing CHD risk.