Almost 80 percent of Chinese white-collar workers have poor sleep quality, and 70 percent have a lackluster sexual life, a recent research project showed.

The project was conducted by the Chinese Medical Doctors Association from Aug 30 to Oct 20. Its aim was to find out about the health situation of young people.

It polled about 260,000 white-collar workers aged between 20 and 45 in Beijing, Shanghai, Guangzhou and Shenzhen through a combination of questionnaires and psychical checkup data.

Although most of those polled sleep six to eight hours per night, the quality of their sleep is not good, according to the research report.

Only 23 percent said they have good sleep quality, while the rest are afflicted by different sleeping problems related to high blood pressure.

In addition, the high blood pressure is also affecting their sexual lives. About 70 percent of those polled said that they don't have a satisfactory sexual life.