(HealthDay News) -- Nothing can ruin a road trip faster than a bout of motion sickness.

The University of Maryland Medical Center suggests how to help prevent motion sickness while in the car:

• Sit in the front seat instead of the back.
• Look at the horizon while you travel, and don't read.
• Lean your head against the headrest, so it doesn't move.
• Point air vents at your face.
• Avoid smoking.