Distractions while driving have a direct influence on driving behavior. A recent study by the Neuromotor Behavior and Exercise Department also shows that braking reaction time is still increased more than 10 seconds after a distraction. This finding could be attributed to so-called task-sets, which have to be reconfigured after a distracting task (e.g. adjusting the radio) for a subsequent task (e.g. sudden braking), which can lead to an increased reaction time. You can find the full article here