The news media, with its penchant for teasingly incomplete reporting on "health" issues, has been buzzing with the latest "explanation" for the increase in ADHD in children - pesticides used in the farming industry.
We've all allowed ourselves to be lulled into a sense that government regulators are the ones who really have a handle on what's safe and what is not. And we blindly trust those who assure us that those who handle these pesticides have been trained to "properly" apply the poisons to our foods.  
What’s On My Food? is a searchable database designed to make the public problem of pesticide exposure visible and more understandable. I recommend this link as you might begin to explore an understanding of what is really on – and in – your food.
www.whatsonmyfood.org.
I'm moving Food, Inc. to the top of my Netflix queue. This documentary about agribusiness was recently shown on PBS and I could watch only the first hour before experiencing overload! This link takes you to a page with 10 simple things you can do to change our food system. Of course, near the top of the list is finding a local source for fruits and vegetables!
www.foodincmovie.com/get-involved.php