How ‘Shift Work Sleep Disorder’ is hurting workers—and costing employers

Before most of America pours its first cup of coffee, millions of workers are already hours into their shifts, and they’re tired. Overnight warehouse workers are packing orders. Early-morning bus drivers are taking kids to school. ER nurses are handing off to the day team at 7 a.m. These workers aren’t just fatigued from long hours. Many are living with a real, diagnosable medical condition that goes unrecognized and untreated, sometimes for years. And the cost of that gap doesn’t st...