Sleeping and driving. According to a report by the National Sleep Foundation’s Sleep and Teens Task Force: “Drowsiness or fatigue has been identified as a principle cause in at least 100,000 police-reported traffic crashes each year, killing more than 1,500 Americans and injuring another 71,000, according to the National Highway Traffic Safety Administration (NHTSA, 1994). Young drivers age 25 or under cause more than one-half of fall-asleep crashes. A North Carolina state study found that drivers age 25 or younger cause more than one-half (55 percent) of fall-asleep crashes … 78% were males. The peak age of occurrence was 20.”