What do the Chernobyl accident, Exxon Valdez Oil spill, and Challenger explosion have in common? They were all caused by sleep deprivation. According to the New England Journal of Medicine, around 20% of workers in industrialized nations work a night shift or rotating shift. This is disconcerting, because our bodies’ sleep schedule operates on a timed clock, typically determined by our exposure to light. In the average, healthy body. light stimulates the circadian rhythm leaving…"Sleeping Well for Shift Workers"