Which term describes a reduction in physical activity leading to health risks?

The term that best describes a reduction in physical activity leading to health risks is "sedentary state." This term specifically refers to a lifestyle characterized by prolonged periods of inactivity, where an individual engages in minimal physical exercise. A sedentary state is associated with various negative health outcomes, such as obesity, cardiovascular disease, diabetes, and other chronic conditions due to the lack of movement and exercise that are essential for maintaining physical health.

While "inactive lifestyle" also points to low levels of physical activity, it is broader and does not convey the same emphasis on the prolonged nature of inactivity that "sedentary state" does. On the other hand, "active behavior" and "chronic exercise" indicate higher levels of physical activity and do not reflect the health risks associated with a reduction in physical activity. Thus, "sedentary state" accurately captures the concept of reduced physical activity leading to health risks.