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But that's not the whole story. A study in 2012

Aug. 4, 2018 by Carolyn Mueller

But that's not the whole story. A study in 2012 in the journal Science, for example, found that genetic variants in genes associated with the symptoms of ADHD were less likely to affect people with the disorder.

The study's authors, all from the University of Chicago, say that they aren't convinced that the findings are representative.

"It's a huge, massive mystery why we're finding this number," they say. "We really have no idea what's going on with ADHD."

The reason might be that our DNA isn't all that stable. When one gene changes, another changes. If the two genes didn't change, it wouldn't appear to be a strong association.

The researchers also found that a number of genes, including the CYP2C5 gene, increased the risk of childhood ADHD. The authors note that other genes, like the GTP3 gene, were also found to be associated with ADHD risk.

When a gene, for example, changes, there's a huge chance that it has a bigger effect. And the researchers say that this is because of the large number of genes that interact with the same gene or complex to the same degree that they interact with the same gene.

They say that their finding is based on a small number of genes.

"We couldn't find any consistent genetic link between ADHD and any of the genes," says Dr. A.W. Liao, MD, a professor of psychiatry at the University of Chicago who has worked on studying ADHD and schizophrenia.

Liao says that the findings were significant, but he thinks that some of the results don't hold up. He says that if you look at the studies that follow the ADHD community, which has been going on for more than 20 years, there's still a lot of mystery.

There are other limitations, too. And Liao agrees that the findings of his team are less compelling to people who are more cautious about taking medication.

Still, he acknowledges that he was surprised at the number of genes that had already been implicated in ADHD, and that his team found a number that would be useful for people who may need more treatment. So the team, they say, might be able to look further. It's also possible that the research is a little less rosy.

Liao says he also wonders if that might be because they found some of the genes and other things that appear to play a role in ADHD in people with ADHD.

"I think that's probably the best way to look