You may have a greater risk of being involved in a fatigue-related traffic crash, if you are:

• A frequent traveler
• A night shift worker
• A young person who tend to stay up late, sleep too little and drive at night
• All of the above
  Explanation:

  "You may be at increased risk of becoming drowsy behind the wheel if you are: 1. Frequent travelers, e.g., business travelers and long-distance commuters. 2. Shift workers who have non-traditional work schedules. 3. Young people who tend to stay up late, sleep too little, and drive at night."