human
I've been having trouble concentrating on my schoolwork lately. What are some of the most common causes of attention deficit disorder?
assistant
Some of the most common causes of ADHD include environmental factors, such as noise and distractions in the environment; biological factors, like genetics or brain chemistry; and psychological factors, like stress or anxiety. Other potential contributing factors to ADHD can be related to a person's upbringing, their social situation, and their learning style.