Xu Yan, the professor from School of Psychology at Beijing Normal University said the reason behind working 10 hours per day including weekends is because of increasing social pressure. Said Beijing Morning Post.

Xu has studied this subject for three years, which is why the study only came out now. However, working overtime has become a recent phenomenon, especially in big cities such as Beijing, Shanghai, Shenzhen and Guangzhou.

Job director, Che Ning explains, some white collars set a too high expectations about their careers, which is another reason that leads to super model workers. He also says white collars should think more about striking a work-life balance.

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