Research brief: Hands-free also impairs driving skills

Speaking on a hands-free phone while driving increases the risk of accidents, according to a Californian study. Researchers tested the braking reaction time of 40 people in a car simulator while asking them simple questions. When the stimuli occurred at the same time as braking, reaction time was 174ms slower. At 55 mph this translates to an extra 16 feet of stopping distance (www.psychologicalscience.org).

 

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