A study has found that Koreans are having a hard time managing their stress levels, which in turn is affecting their sexual intercourse satisfaction.

The research, conducted by Tenga, a global sexual healthcare company, surveyed 1,000 Korean men and women aged between 18 and 74 to examine the correlation between stress levels and sexual satisfaction.

More than half (59 percent) of the Korean respondents who had control over their stress levels said they were satisfied with the quality of their sexual intercourse compared with 40 percent of the respondents that had trouble managing their stress levels.

The company, however, noted that only 51 percent of the Korean surveyors responded that they had a handle on their stress level, which fell well below the global average of 72 percent.

The company had surveyed 12,000 men and women of the same age range in 17 other countries, including U.S., China, U.K., and Japan.

“The response shows that one out of two Koreans is having problems managing their stress levels,” the company wrote.

Regarding satisfaction with sexual intercourse, Korea scored 40.7 points, which is far below the global average of 62.3 points.

The research shows that Koreans are not only unhappy but are also less satisfied with their sex lives, the company noted.