Mental health problems are more common in people living alone regardless of age and sex says a study. The prevalence of common mental disorders was higher in individuals living alone than in those not living alone in all survey years the study noted. For the study published in the journal PLOS ONE the researchers used data on 20500 individuals aged 16-64 living in England who participated in the 1993 2000 or 2007 National Psychiatric Morbidity Surveys. Whether a person had a common mental disorder (CMD) was assessed using the Clinical Interview Schedule-Revised (CIS-R) a questionnaire focusing on neurotic symptoms. The