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Attention deficit hyperactivity disorder Facts

A neurobehavioral disorder

  • Attention deficit hyperactivity disorder (ADHD) is a neurobehavioral disorder.
  • It is characterized by significant difficulties of inattention or hyperactivity and impulsiveness or a combination of the two.
  • There are three sub-types of ADHD.
  • Symptoms for this emerge before seven years of age.
  • It impacts school-aged children and results in restlessness, acting impulsively, and lack of focus which impairs their ability to learn properly.
  • It is the most commonly studied and diagnosed psychiatric disorder in children.
  • About 3 to 5% children are effected with this disorder.
  • 4.7 percent of American adults live with ADHD.
  • It is diagnosed two to four times more frequently in boys than in girls.
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