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National Institutes of Health
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What is normal?

Noah

“I do OK in gym class. Library time is the worst. All I hear is ‘sssshh.’ I tell myself ‘Don’t talk,’ but I never stop myself in time.”

Normal Behavior

Most children have trouble sitting still. Many kids don’t finish their schoolwork. Few children sit through meals without tapping, kicking, or drumming. So how do you know what is normal and what is ADHD? Only a doctor can tell you for sure. ADHD behavior doesn’t happen in only one place, like at school. It may happen every day in the classroom, on the playground, and at home. ADHD can lead to problems with learning, friendships, and family life.