Seven in 10 people in South Korea said they had experienced at least one mental health problem during the previous year, according to a biennial survey by the National Center for Mental Health. The 70.1 percent share was below the 73.6 percent recorded in 2024, but reports of multiple problems have grown over the longer term.
The proportion reporting five or more problems rose from 18.5 percent in 2016 to 30.8 percent in 2026. Stress was the most common problem, cited by 47.7 percent, followed by unexplained physical discomfort at 37.5 percent, depression at 30.8 percent, insomnia lasting several days at 30.6 percent and persistent anxiety at 30.3 percent.
Other responses included gaming addiction at 18.8 percent and anger that was difficult to control at 16.2 percent. A further 14.1 percent said they had experienced specific and serious suicidal thoughts. The findings describe respondents' reported experiences rather than clinical diagnoses.
Daily disruption rises as help-seeking remains limited
The reported disruption to daily life also increased. Some 21.5 percent said mental health problems had a major negative effect on their lives, up from 15.6 percent in 2024. Among those reporting a major effect, 25.4 percent said work or studies were disrupted, while 21.4 percent cited interference with social activities and personal relationships.
Only 30.4 percent of respondents said they had discussed their problems with another person or visited a medical institution. The report said use of counseling and treatment had improved over time, but most people still did not seek outside help. It called for easier access to services and reduced social stigma. The online survey covered 5,100 people ages 15 to 69 nationwide over two weeks beginning June 12.