sedentariness

例句：

1. 1. Many people spend hours sitting in front of their computers every day.
   许多人每天花很多时间坐在电脑前。
2. 2.The elderly often have a sedentariness that can lead to health problems.
   老年人往往有久坐的倾向，这可能导致健康问题。
3. 3.Scientists are studying the effects of sedentariness on human health.
   科学家们正在研究久坐对人类健康的影响。