Welland (2011 population 50,631) is a city in the Regional Municipality of Niagara in Southern Ontario, Canada. The city is located in the centre of Niagara.
More than 5 million U.S. children, or 9.5 percent, have been diagnosed with ADHD as of 2007, according to the U.S. Centers for Disease Control and Prevention. Kids with the condition may act more impulsively, and have difficulty paying attention and controlling their behavior.
So in a classroom of 30 children, two to three children may have ADHD. 1 ,2 3 4 5 Short attention spans and high levels of activity are a normal part of childhood. For children with ADHD, these behaviors are excessive, inappropriate for their age, and interfere with daily functioning at home, school, and with peers.