A few different factors lead to suicide. They may have lost health insurance and thus can’t access services they need or have had disruptions in relationships. There may also be a preceding mental health problem, and because of stress, it’s coming up again. Whatever the underlying causes, suicides in the workplace in 2008 were at their highest level since the government started tracking the numbers. Workplace suicides jumped 28 percent to 251 cases in 2008 — the most recent data available — up from 196 in the previous year, according to the U.S. Department of Labor.