Otherwise, the disorder was classified as disturbance of activity and attention, other hyperkinetic disorders or hyperkinetic disorders, unspecified. The latter was sometimes referred to as hyperkinetic syndrome. Social construct theory
The social construct theory of ADHD suggests that, because the boundaries between normal and abnormal behavior are socially constructed (i.e. jointly created and validated by all members of society, and in particular by physicians, parents, teachers, and others), it then follows that subjective valuations and judgements determine which diagnostic criteria are used and thus, the number of people affected. This difference means using DSM-IV criteria could diagnose ADHD at rates three to four times higher than ICD-10 criteria. Thomas Szasz, a supporter of this theory, has argued that ADHD was "invented and then given a name". Adults
Adults with ADHD are diagnosed under the same criteria, including that their signs must have been present by the age of six to twelve. The individual is the best source for information in diagnosis, however others may provide useful information about the individuals symptoms currently and in childhood; a family history of ADHD also adds weight to a diagnosis. : 7, 9  While the core symptoms of ADHD are similar in children and adults, they often present differently in adults than in children: for example, excessive physical activity seen in children may present as feelings of restlessness and constant mental activity in adults.
Cardiomyopathy – diseases of cardiac muscle
Hypertensive heart disease – diseases of the heart secondary to high blood pressure or hypertension
Heart failure - a clinical syndrome caused by the inability of the heart to supply sufficient blood to the tissues to meet their metabolic requirements
Pulmonary heart disease – a failure at the right side of the heart with respiratory system involvement
Cardiac dysrhythmias – abnormalities of heart rhythm
Inflammatory heart disease
Endocarditis – inflammation of the inner layer of the heart, the endocardium. The structures most commonly involved are the heart valves. Inflammatory cardiomegaly
Myocarditis – inflammation of the myocardium, the muscular part of the heart, caused most often by viral infection and less often by bacterial infections, certain medications, toxins, and autoimmune disorders. It is characterized in part by infiltration of the heart by lymphocyte and monocyte types of white blood cells. Eosinophilic myocarditis - inflammation of the myocardium caused by pathologically activated eosinophilic white blood cells. This disorder differs from myocarditis in its causes and treatments. Valvular heart disease
Congenital heart disease – heart structure malformations existing at birth
Rheumatic heart disease – heart muscles and valves damage due to rheumatic fever caused by  Streptococcus pyogenes a group A streptococcal infection.