1 in 20 children have ADHD and can present in a mild, moderate or severe form. ADHD is a lifespan condition, by adulthood, many people have learned to live happy, healthy and successful lives using a range of interventions and strategies that include medication, daily exercise, healthy nutrition, stress management strategies and what are known as executive functioning skills to help them plan and organise their lives, especially in school and in the workplace. There are three main characteristics of ADHD: