What is a major risk factor for developing Type 2 diabetes?

A sedentary lifestyle is a major risk factor for developing Type 2 diabetes because it is closely linked to obesity and insulin resistance. When individuals engage in little physical activity, they are more likely to have higher body fat percentages, especially visceral fat, which is known to disrupt the body's insulin sensitivity. Regular physical activity helps to regulate blood sugar levels and maintain a healthy weight by improving the body's ability to use insulin effectively.

In contrast, while a high sugar diet can contribute to weight gain and metabolic issues, it is not the only factor, nor is it as directly correlated with the risk of developing Type 2 diabetes as physical inactivity. Genetic factors can increase one’s predisposition to diabetes, but they are not modifiable lifestyle choices. Excessive hydration is not considered a risk factor for Type 2 diabetes and does not have a direct impact on the development of the disease. Thus, a sedentary lifestyle fundamentally influences weight management and insulin function, making it a critical area for intervention in the prevention of Type 2 diabetes.