Why do healthy lifestyle choices reduce the risk of non-communicable diseases?

• A. They replace the need for medical checks
• B. They only improve mood and energy levels
• C. They prevent risk factors such as obesity and high blood pressure; examples include regular physical activity and a balanced diet
• D. They prevent contagious diseases

Answer: (C)

The main idea here is that non-communicable diseases are strongly influenced by lifestyle-related risk factors that we can change. This option best captures how healthy choices work: by preventing key risk factors such as obesity and high blood pressure through regular physical activity and a balanced diet.

Regular physical activity helps keep a healthy weight, strengthens the heart, lowers blood pressure, and improves cholesterol and how the body uses insulin. A balanced diet supports weight control and reduces intake of harmful components like saturated fats, added sugars, and too much salt, which helps protect blood pressure and blood sugar levels. When these risk factors stay in check, the chances of developing chronic conditions such as heart disease, type 2 diabetes, and some cancers go down.

Other options miss a crucial point. Replacing medical checks isn’t accurate because screenings and medical advice remain important even with a healthy lifestyle. Focusing only on mood and energy doesn’t address the broader risk factors linked to these diseases. Preventing contagious diseases isn’t the primary way lifestyle affects non-communicable diseases, which are not transmitted between people.