Children are naturally dreamers. It's not unusual to find them staring out a window, lost in thought about some invented escapade. Daydreaming is how they create and explore new ideas.
Snapping back to reality can be more of a problem for some children than others, though. Kids with attention problems will stare off into space in the middle of class, preferring to stay lost in their own mind rather than return to the classroom. If trouble concentrating and focusing is a constant problem for your child, it could be a sign of ADHD.
Parents of teenagers with ADHD need to pay particular attention to the disorder when their child gets behind the wheel of a car. Young adults with attention problems chalk up as many as four times the number of accidents as those who don't have ADHD.
That's cause for concern, but it doesn't mean you should keep your kid out of the driver's seat.
Scientists aren't sure why some children have ADHD. They believe it has to do, at least in part, with genes. Kids who have a parent, sibling, or other close relative with ADHD are more likely to also have the condition.
Other possible causes of ADHD include:
Cigarette smoking and alcohol use during pregnancy