[header] How to drive a car safely [title] Never drink and drive. [step] Everyone knows that they shouldn't drive after drinking, but it's worth repeating. At minimum, drinking impairs your judgement and slows your reaction time. 
At worst, it causes blurred vision and loss of consciousness. [substeps] According to the national highway traffic safety administration (nhtsa), in the year 2012 , 31% of all fatal traffic accidents in the united states involved an alcohol-impaired driver.