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☆☆☆☆☆If a person displays many symptoms of ADHD [see related questions] one could suggest a person has ADHD. In some cases, such as inattentive subtypes of ADHD a person would not display obvious external symptoms.
Only a doctor can confirm a diagnosis of ADHD.
1845
I have not heard of the date above, but I know that in the early 1900's it first (according to my resource) appeared in journal articles under the name of 'hyperkinetic disorder'
ADHD is diagnosed in boys three of four times more often
A person must show symptoms prior to age seven.
Mario is impatient and will not take turns in an activity
About 3 to 5 percent of school-age children in the United States are thought to have AdHD. This means for a classroom of 20 to 30 students, on average there is one child with ADHD. Boys are four time more likely than girls to be diagnosed with ADHD.
