What are the causes for Attention-Deficit / Hyperactivity Disorder (ADHD)?

Scientists are studying cause(s) and risk factors in an effort to find better ways to manage and reduce the chances of a person having ADHD. The cause(s) and risk factors for ADHD are unknown, but current research shows that genetics plays an important role. Recent studies of twins link genes with ADHD.

In addition to genetics, scientists are studying other possible causes and risk factors including:

  • Brain injury
  • Environmental exposures (e.g., lead)
  • Alcohol and tobacco use during pregnancy
  • Premature delivery
  • Low birth weight

Research does not support the popularly held views that ADHD is caused by eating too much sugar, watching too much television, parenting, or social and environmental factors such as poverty or family chaos. Of course, many things, including these, might make symptoms worse, especially in certain people. But the evidence is not strong enough to conclude that they are the main causes of ADHD.

For more information about cause(s) and risk factors, visit the National Resource Center on ADHD or the National Institute of Mental Health.

Source: http://www.cdc.gov