题目内容：
Questionsare based on the following passage.
The answer is yes -- and no. Yes, when the offspring become grossly obese. This is now becoming an alarmingly common occurrence in the US. Such children and adolescents have a greatly reduced quality of life in terms of both their physical and psychosocial health. So say No to that doughnut and burger.
What does the word "sedentary ( Para. 2)" mean?
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