Diseases and Conditions
Adult attention-deficit/hyperactivity disorder (ADHD)
Overview
Symptoms
Causes
Risk factors
Complications
Diagnosis
Treatment
Lifestyle and home remedies
Alternative medicine
Coping and support
Preparing for an appointment
Causes
While the exact cause of ADHD is not clear, research efforts continue. Factors that may be involved in the development of ADHD include:
- Genetics. ADHD can run in families, and studies indicate that genes may play a role.
- Environment. Certain environmental factors also may increase risk, such as lead exposure as a child.
- Problems during development. Problems with the central nervous system at key moments in development may play a role.
