Attention Deficit Disorder in adults often includes hyperactivity, in which case it is commonly referred to as Attention Deficit/Hyperactivity Disorder (ADHD). Adults suffering from ADHD may be characterized by a high degree of restlessness that is not only a problem for the sufferer, but it is also noticeable by and bothersome to others. Adult ADHD may include impulsivity, which is the tendency to make quick decisions and act without thought for the consequences. This degree of impulsivity can be harmful to the individual (e.g., crossing the street without looking) and bothersome to others, especially in relationships. High impulsivity may be motivated by a quest for immediate rewards and the inability to delay gratification. This can manifest itself in social intrusiveness (e.g., interrupting others excessively) and in making important decisions without proper planning or understanding of their implications (e.g., making an investment without adequate information, quitting a job for trivial reasons). In all cases, the essential feature of adult ADHD is a a pervasive, noticeable pattern of inattention, hyperactivity, and impulsivity that interferes with functioning and may cause severe distress. It is a severe disorder that will not resolve itself without treatment. Cognitive-behavioral therapy (CBT) and medication is the approach that has been shown to produce the best results.