Income vs. Brain Development

Here's the headline, and you'll see immediately why this is relevant, and why it ruffled a few feathers:

Cal Study: Poor Kids Lack Brain Development

http://www.nbcbayarea.com/news/local/Cal-Study-Kids-Might-Not-Get-Full-Brain-Development-if-Poor.html

FTA:

"This is a wake-up call," Knight said. "It's not just that these kids are poor and more likely to have health problems, but they might actually not be getting full brain development from the stressful and relatively impoverished environment associated with low socioeconomic status: fewer books, less reading, fewer games, fewer visits to museums."

Related: Kirstof argues that the world's IQ could be raised simply by introducing iodine into the diet..
http://www.nytimes.com/2008/12/04/opinion/04kristof.html?_r=1&em