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"I know what's it's like to grow up with ADHD and how important it is for parents, caregivers and patients, to have access to accurate information," said Ty Pennington, host of ABC's Extreme Makeover: Home Edition. "I loved being part of ADHD Experts on Call last year and I am excited about the many people we will impact this year. I hope that by working with all of these great people and sharing how support and treatment has made a difference in my life, I'll help other kids and families understand that there are people out there ready to help them and that it's possible to live a productive life with ADHD."

The symptoms of ADHD may have a profound effect on a child's quality of life and can be serious enough to interfere with academic accomplishments. But just as important, children with ADHD also may have problems maintaining friendships, focusing on sports and other after-school activities and relating well within their own families. A diagnosis of ADHD requires that a child exhibit behaviors of inattention and/or hyperactivity-impulsivity that are more frequent or more severe than in other children the same age. These behaviors must create a real handicap in at least two areas of life, such as school, home or in social settings.

In addition to child and adolescent ADHD, it is estimated that four percent of the U.S. adult population is also affected by ADHD. A recent national survey, "Capturing America's Attention," found that the repercussions of ADHD may have limited adults with the condition from reaching their full academic and occupational potential, and limit their satisfaction with themselves and their relationships. According to the survey:

• Adults with ADHD are three times more likely to suffer from stress, depression or other problems with emotion;
• Adults with ADHD are more likely to engage in harmful or antisocial behaviors, like smoking and drug use;
• Adults with ADHD have
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