What message does the news item mainly try to convey?

According to China Daily, the so-called “996” work schedule, in which employees work from 9 am to 9 pm, six days a week, spread from IT to other industries. Some companies may even demand more overtime. In a 2018 study, more than 80 percent of Chinese employees said they were overworked and under mental and physical stress. This can cause depression, weight gain and sleep deprivation, which lower work productivity.