While many assume that attention deficit disorder is an issue based solely in childhood, it can in fact be a disorder in adulthood as well, even affecting those who were not diagnosed as a child. Often adults with ADHD have difficulty focusing, crave excitement, blurt out inappropriate thoughts without thinking, and have poor organisational skills. They may similarly suffer from irritability or mood swings, low self-esteem and often have an explosive temper. Paradoxically, they may also have a tendency to become completely absorbed in tasks that are stimulating and rewarding, becoming so engrossed they neglect everything else they are supposed to be doing. Consequently, left untreated ADHD has the potential to cause problems in virtually every aspect of life.