The adage “hard work never killed anybody” may not be completely true. A study in the journal PLOS One suggests the hours you work earlier in life may be associated with worse health years later. In particular, the time spent working outside traditional nine-five in younger years. T his new research is in addition to various other studies that non-standard work schedules may harm both physical and social lifestyle. This study, from New York University, found careers with volatile work schedules reported more depressive symptoms by the time they were fifty, in addition to lower quality of sleep. Data came from seven thousand people over thirty years in the National Longitudinal Survey of Youth.