Children under treatment will migrate to adult health services if necessary as they transit into adulthood, however diagnosis of adults involves full examination of their history. Treatment of ADHD is usually based on a combination of behavioral interventions and medication. Stimulant medication is the first line treatment for ADHD in adults, particularly amphetamines. Non-stimulant medications, such as atomoxetine, or Viloxazine, are also recommended for some ADHD adults. Psychotherapy such as cognitive behavioural therapy is helpful, particularly in combination with medication. Similarly, exercise, sufficient sleep and nutritious food are also known to have a positive effect. Within school and work, reasonable accommodations may be put in place, such as by structuring work tasks, and setting up clear rules and limits for tasks. Classification
The DSM-5, or Diagnostic and Statistical Manual of Mental Disorders, 2013 edition, defines three types of ADHD:

a Predominantly Inattentive presentation
a Predominantly Hyperactive-Impulsive presentation
a Combined Type, that displays symptoms from both presentationTo meet the diagnostic criteria of ADHD, an individual must display:

at least six inattentive-type symptoms for the inattentive type
at least six hyperactive-type symptoms for the hyperactive-impulsive type
all of the above to have the combined typeThe symptoms (see below) were required to have been present since before the individual was seven years old, and must have interfered with at least two spheres of his or her functioning (at home and at school or work, for example) over the last six months.
ADHD in adults began to be studied from the early 1970s and research has increased as worldwide interest in the condition has grown.In the 1970s researchers began to realize that the condition now known as ADHD did not always disappear in adolescence, as was once thought. The expansion of the definition for ADHD beyond only being a condition experienced by children was mainly accomplished by refocusing the diagnosis on inattention instead of hyperactivity. At about the same time, some of the symptoms were also noted in many parents of the children under treatment. Society and culture
ADHD in adults, as with children, is recognized as an impairment that may constitute a disability under U.S. federal disability nondiscrimination laws, including such laws as the Rehabilitation Act of 1973 and the Americans With Disabilities Act (ADA, 2008 revision), if the disorder substantially limits one or more of an individuals major life activities. For adults whose ADHD does constitute a disability, workplaces have a duty to provide reasonable accommodations, and educational institutions have a duty to provide appropriate academic adjustments or modifications, to help the individual work more efficiently and productively.In a 2004 study it was estimated that the yearly income discrepancy for adults with ADHD was $10,791 less per year than high school graduate counterparts and $4,334 lower for college graduate counterparts. The study estimates a total loss in productivity in the United States of over US$77 billion.