There are a few things you should do before taking the wheel to prevent driving while drowsy:

• Avoid driving late at night or driving alone
• Drive in shifts with another driver if going on a long trip
• Get enough sleep! Most adults need at least 7 hours of sleep a day, while teens need 8-9 hours
• Develop good sleeping habits such as sticking to a sleep schedule
• Avoid drinking alcohol or taking medications that make you sleep
• Seek medical help for symptoms of sleep disorders