Attention-deficit/hyperactivity disorder

An essay is a story told about the issue of Attention-deficit/hyperactivity disorder.  The essay should be informative, reflecting you understand what ADHD is as a mental health issue.  Your content should include What is it; Who gets it; How is it treated; Why does it exist? When does it occur? and Where is it treated? Your can use data and statistics from reliable sources to support your answer. At lease 4 scholarly sources should be used.