Shut your mouth and drive fast - Autoblog Simplified Chinese

According to a "Transportation Research Report" from the University of Michigan in the United States: The effect on drivers of verbally communicating with others while driving is the same as the effect of talking on a mobile phone while driving.

This result was derived from records of the driving conditions of 36 drivers. Interestingly, among the drivers under the age of 30, especially women, they seemed particularly susceptible to distractions compared to other test subjects.