‘It is perhaps in keeping with the subject of our conference that proceedings will be beginning 45 minutes late!’ So began the tenth conference of ADDISS (Attention Deficit Disorder Information and Support Services), a UK-based charitable organisation established in the late 1990s to support attention deficit hyperactivity disorder patients and their families. On a rainy October day in central London, more than 200 delegates assembled for two days of talks and workshops. The day began with a series of keynote speeches.