They may be up all night saving others' lives, but night shift medical staff put their own lives in danger when they drive home drowsy.
Researchers in France tested the driving skills of 30 health care workers on a driving simulator -- once after a normal night's sleep, and once after an over-night shift.
After the all-nighter, workers had greater difficulty controlling their speed and staying straight while driving.
Researchers recommend taxi services or at least a short rest after their shift may help workers get home safely.
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