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Turns out shift work is even worse for you than you thought

Doctors, nurses, firefighters and other shift workers know all about the effects of wonky sleep. Using animal models, scientists at the Texas A&M Health Science Center College of Medicine found that that subjects on shift work schedules had more severe stroke outcomes in terms of brain damage and loss of sensation and limb movement than controls on regular sleep-wake cycles. “The body is synchronized to night and day by circadian rhythms—24-hour cycles controlled by internal biological clocks