OK, so this is only loosely related to career passion, but it was just too interesting not to post...
Using genetic data and questionnaires from 2401 pairs of identical and fraternal twins, University of Minnesota researcher Brian McCall, Ph.D., calculated the siblings' job satisfaction levels, their work values (such as whether they enjoyed challeges), and the frequency with which they switched jobs and fields. Genetic factors, McCall reports in the Journal of Vocational Behavior, explained a third of the twins' job changes and 26 percent of their career changes Even when work values and job satisfaction were accounted for, one in five job changes and 15 percent of career switches were attributed to genetic factors.
While McCall believes this study is a promising first step in determining how biology affects job permanence, he notes that the job data recorded for each subject didn't distinguish between voluntary and involuntary departures. So it's unclear whether genes influence the tendency to quit jobs--or a talent for getting fired.
Passion Catalyst SM