For more than 30 years, scientists have examined the relationship between food coloring and hyperactive behavior in children, but with mixed results. To date, no conclusive evidence has been found to show that food coloring causes ADHD. Some studies, though, have suggested an association between the two. Most likely, ADHD is caused by the combination of changes in brain structure, environmental factors, and heredity.
Because of problems with distractibility and poor concentration, many teens with ADHD have problems in school. Grades may fall, especially if the teen is not getting ADHD treatment.
It's not uncommon for teens with ADHD to forget assignments, lose textbooks, and become bored with their daily class work. Teens may become inattentive, or excessively attentive -- not waiting for their turn before blurting out answers. They may interrupt their teacher and classmates, and they may rush through assignments. Teens with ADHD may also be fidgety and find it tough to sit still in class.
Often, teens with ADHD are so busy focusing on other things they forget about the task at hand. This can be seen especially with homework and athletic skills and in relationships with peers. This lack of attention to what they're doing often leads to bad grades on tests and being passed over for sports teams, after-school activities, and peer groups.
Does ADHD raise the risk of car accidents and problem drinking?
Yes. Driving poses special risks for teens with ADHD. Teens with ADHD are two to four times more likely to have a car accident than teens without ADHD.
Teens with ADHD may be impulsive, risk-taking, immature in judgment, and thrill seeking. All of these traits make accidents and serious injury more likely.