ADHD affects about 4.5 million children in the US, and 2.5 million take medication to treat their condition. That means the findings of this study aren't something that should be ignored, as the connection between pesticides and ADHD is pretty strong. Certain pesticides will leave the body after about a week, but this study shows that some degree of pesticide residue will remain in the body, making exposure to these chemicals ongoing. Kids are especially at a greater risk since their young bodies are still developing.
Scientists aren't saying that eating conventional produce that's treated with pesticides will automatically lead to the development of ADHD, because many other factors may be involved, but this study may offer yet another reason to choose organic foods whenever possible.