Original sentence: Attention-deficit hyperactivity disorder (ADHD) is a developmental neurobehavioural disorder widely recognized by the medical and scientific community as causing impairment, especially in children.Despite it being a well-validated clinical diagnosis, ethical and legal issues with regard to treatment have been key areas of concern.It has been frequently said by news sources, social critics, religions, and individual medical professionals, to be a controversial disorder
Edited sentence: Between 2 and 5 per cent of the school-age population is claimed to suffer from it.Children with ADHD are unusually inattentive, hyperactive and show impulsive behaviour at home, school and in social settings – to a degree that is inappropriate for their age and development.However, studies have found that additives in food cause hyperactivity  and a proportion of every generation have found certain activities boring and have been described as disruptive  yet they have previously not been drugged; a common treatment for ADHD.In some countries, notably the UK and Australia, concern has been voiced by news sources, social critics, religions, and individual medical professionals about it's treatment and even it’s existence Despite it being a well validated clinical diagnosis, ethical and legal issues with regard to treatment have been key areas of concern.It therefore remains a controversial disorder.The condition Attention-deficit hyperactivity disorder (ADHD) was described only a few decades ago and is applied mostly to children who won‘t do as they are told