How weight affects 'wait'

Overweight and obese children are at greater risk for pedestrian injury, new research shows. It's not because overweight and obese kids can't cross the street fast enough. Rather, in a study involving traffic simulations, researchers found that children with higher body mass indices were more impatient and impulsive than their peers; they waited less before crossing, allowed for a smaller buffer of time and distance between themselves and oncoming traffic, and were involved more collisions in th...