What causes ADHD?
No one knows for sure. ADHD probably comes from a combination of things. Some possibilities are:
- Genes, because the disorder sometimes runs in families
- Lead in old paint in and plumbing parts
- Smoking and drinking alcohol during pregnancy
- Certain brain injuries,
- Food additives like artificial coloring, which might make hyperactivity worse.
Some people think refined sugar causes ADHD. But most research does not support the idea that sugar causes ADHD.
