What is the major risk factor associated with both obesity and hypertension?

Decreased physical activity is a significant risk factor associated with both obesity and hypertension. Regular physical activity plays a crucial role in maintaining a healthy weight and managing blood pressure levels. When individuals engage in less physical activity, they are more likely to gain weight, leading to obesity, which is directly linked to increased blood pressure.

Physical inactivity not only contributes to weight gain but also affects cardiovascular health by causing changes in blood vessel function and increasing the risk of developing hypertension. Thus, promoting increased physical activity is essential in reducing the risks associated with obesity and hypertension, making it the correct answer to the question.

While other factors like high salt intake, alcohol consumption, and genetics can contribute to these conditions, the direct relationship between reduced physical activity and both obesity and hypertension is particularly significant in understanding their management and prevention.