Apr 10, 2014

The Toxins That Threaten Our Brains

Very Interesting article from +The Atlantic 



Some Highlights from the (long) Article 

I asked Grandjean, a Danish-born researcher who travels around the world studying delayed effects of chemical exposure on children.
“That’s what I advise people who ask me, yes. It’s the best way of preventing exposure to pesticides.” Grandjean estimates that there are about 45 organophosphate pesticides on the market, and “most have the potential to damage a developing nervous system.”

By age two, almost all of the billions of brain cells that you will ever have are in their places. Except in the hippocampus and one or two other tiny regions, the brain does not grow new brain cells throughout your life. When brain cells die, they are gone. So its initial months of formation, when the brain is most vulnerable, are critical. “During these sensitive life stages,” Grandjean and Landrigan write, exposure “can cause permanent brain injury at low levels that would have little or no adverse effect in an adult.”

“What [Landrigan and Grandjean] are doing with the data is missing the key component, which is the dose,” Plunkett explained. “Many of the chemicals they talk about are well established to be neurodevelopmental toxicants in children—but it’s all about how much they’re exposed to. Just like anything else. If you don’t give people enough, or if you don’t take enough in your water or food or the air you breathe, you’re not going to have an effect.”