Advertisement
Home » Vocabulary » Attention deficit hyperactivity disorder
Thing

Attention deficit hyperactivity disorder

Attention deficit-hyperactivity disorder (ADHD) also known as hyperkinetic disorder (HKD) is a mental disorder and neurobehavioral disorder characterized by either significant difficulties of inattention or hyperactivity and impulsiveness or a combination of the two. According to the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR), symptoms emerge before seven years of age.

WELCOME TO RICHTOPIA

FREE MEMBERSHIP

Get special new reports and never miss an update again ...

  • 1,922,183 all-time users

WHAT IS RICHTOPIA?

Advertisement
As Seen On Forbes
Advertisement