The unhappiest jobs are also some of the loneliest, according to an 85-year study from Harvard researchers.
While particular roles can't be reliably correlated with dissatisfaction and burnout, certain job characteristics can be, Robert Waldinger, MD, a professor of psychiatry at Harvard Medical School and director of the Harvard Study of Adult Development, one of the longest-running studies on happiness, tells CNBC Make It.
Jobs that require little human interaction and don't offer opportunities to build meaningful relationships with co-workers tend to have the most miserable employees, the study found.
"It's a critical social need that should be met in all aspects of our lives," Waldinger explains.
"Plus, if you are more connected to people, you feel more satisfied with your job, and do better work."