Attention deficit hyperactivity disorder (ADHD), is a mental health illness that can cause abnormal levels of hyperactive and impulsive behaviours. Both children and adults can have ADHD.
People with the inattentive type of ADHD are often:
People who are impulsive or hyperactive often
Here, a combination of symptoms from both the inattentive type and hyperactive-impulsive type symptoms are exhibited. This type is the most common as six or more symptoms are present.
The following factors can contribute to ADHD;