|Attention Deficit Hyperactivity Disorder (ADHD) is a brain disorder commonly observed in children and adolescents. In affected children, it can be seen throughout their life. The symptoms are inability to control anger and emotions, hyperactivity, lacking social skills, cannot able to concentrate and pay attention. As a result, the children with ADHD cannot perform well at school and the behaviour of the affected adolescents and adults does not match their age. Though some genetic studies are saying that genes are involved, the exact causes of ADHD have not yet been found. Apart from genes, scientists are focusing on other possible causative factors like surrounding environment, food habits, and injuries in brain. Boys have been diagnosed with ADHD three times more than girls. The treatment for ADHD involves regular counselling, changing lifestyle and timely intake of medicines. In most cases of ADHD, the affected individuals suffer with other relevant disorders that include learning disabilities, Tourette syndrome, oppositional defiant disorder (ODD), conduct disorder (CD), mood disorders, anxiety disorders, obsessive compulsive disorder (OCD), substance use disorders, restless legs syndrome etc.
High-impact journals are those considered to be highly influential in their respective fields. The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.