How is a sedentary lifestyle defined?

A sedentary lifestyle is characterized by little to no physical activity, which is why this choice is the correct definition. Individuals living such a lifestyle typically engage in minimal movement or exercise, often spending prolonged periods of time sitting or lying down, whether at work, during leisure activities, or in daily routines. This lack of physical activity can lead to various health concerns, including obesity, cardiovascular diseases, and other chronic conditions.

The other options represent levels of physical activity that are inconsistent with a sedentary lifestyle. For instance, high levels of physical activity indicate an active lifestyle rather than a sedentary one, while regular participation in sports implies consistent engagement in physical exercise. Moderate physical activity several times a week also suggests a commitment to maintaining physical fitness, contrasting sharply with the notion of being sedentary. All these alternatives align with active or moderately active lifestyles, which are opposite to the characteristics of a sedentary lifestyle.