Understanding ADHD: A Guide To Taking a Free Online TestAttention Deficit Disorder (ADHD) affects countless people worldwide, and while it is frequently identified in youth, it can persist into the adult years. The symptoms of ADHD can vary widely, but they frequently consist of problems with attention, hyperactivity, and impulsiveness. https://www.susannahmcgowan.uk/health/understanding-adhd-in-adults-diagnosis-and-testing-methods/