Chinanews, Beijing, Nov. 24 – According to China Youth Daily, currently more and more white collars spend long hours at work at their desks everyday. They take little physical exercise in their off hours, most of the time watching TV. It is estimated that there are at least 60% to 85% of Chinese white collars experience long-time sitting.Long-time sitting causes different kinds of diseases and there are 2 million people dead of diseases related to long-time sitting worldwide annually. The World Health Organization reminds that people should avoid long-time sitting and take more exercises. People who observe such living style will easily get cervical vertebrae diseases.Experts said that white collars should take 30-minute physical exercises every day.