The hygiene hypothesis.

I’ve definitely written/spoken about this before, but a good friend (thanks Elizabeth!) sent me this article and it got me to thinking about the Western obsession with hygiene again: A Little Dirt Is Good for You

“In studies of what is called the hygiene hypothesis, researchers are concluding that organisms like the millions of bacteria, viruses and especially worms that enter the body along with ‘dirt’ spur the development of a healthy immune system.”

More here: nytimes.com/health. Now go eat some dirt.