Study: Texting dramatically slows drivers' reaction time

A startling new study revealed that texting while driving is more dangerous than previously thought.

October 6, 2011 2:31:13 PM PDT
University of Texas researchers say texting while driving doubles a driver's reaction time. That makes a driver less able to respond to sudden roadway dangers.

Scientists say reaction time was slowed down whether the driver was typing a message or reading one.

The U.S. Transportation Department says distracted driving contributes to as much as 20 percent of all fatal crashes and that cell phones are the primary source of driver distractions.

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