This illustrates how wide-spread the problem has become on a national scale. This graphic by Mattress Clarity ranks the Top 30 counties in the US with the most reported traffic fatalities caused by drowsy driving. It is interesting to see how some states, such as Texas and California, are home to the overwhelming majority of counties represented, while the eastern seaboard is largely absent. Sleep deprivation is a major cause of motor vehicle accidents, and studies have shown it can impair the human brain similarly to alcohol consumption.

Infographic by: www.mattressclarity.com