With that being said, how can you be sure that the behaviors you are seeing today are really being caused by the neurodevelopmental disorder called ADHD and not just a typical active 5-year old behaving like a typical active 5-year-old? Perhaps, you are the frustrated parent of an impulsive and hyperactive child whose classroom teacher has been repeatedly calling you with their issues and concerns? Or perhaps you are an adult who was never formally diagnosed as a child and you are currently experiencing the negative complications of an untreated condition?