The impression of attention deficit hyperactivity disorder (ADHD) depends on the existence of an adequate number of signs of abnormally large amounts of impulsivity, hyperactivity, and heedlessness that have been existing since early adolescence and are keeping with the individual's formative age and that happen in more than one setting (for instance, at home and in school). All youngsters, to some degree, demonstrate behaviors of absentmindedness, hyperactivity, and impulsivity at different times and these behaviors are known to be impacted by framework of reference.
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