People are most vulnerable to accidents “from 2 to 7 a.m. and 2 to 5 p.m.,” reports The Province, a British Columbia, Canada, newspaper. According to the report, a panel of scientists believe that “brain processes produce an increased tendency toward sleep and diminished capacity to function in the early morning hours. A second, less-pronounced period of vulnerability occurs in the mid-afternoon.” The disaster at the Three Mile Island nuclear plant in Pennsylvania is cited as an example of human error in judgment occurring within these “zones of vulnerability.” The researchers found “a striking association between the two daily periods of human sleep tendency and medical incidents, motor vehicle accidents and human error in technological catastrophes,” notes The Province.
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