People who sleep for less than four hours a night are 15.1 times more likely to have a singlecar accident than those who sleep for seven to nine hours. Research published in SLEEP found that four to six hours of sleep also increased single-car accident risk, although not as much. Other risk factors were changing sleep or work schedules in the previous week and driving for three or more hours without a break.
Does My Bum Look Big with this Stick? by Shona Daubé (Pink Cottage Publishing, pinkcottagepublishing.co.nz)