Free Republic

Most of us never considered eating the mud pies we made as kids, but for many people all over the world, dining on dirt is nothing out of the ordinary. Now an extensive meta-analysis forthcoming in the June issue of The Quarterly Review of Biology helps explain why. According to the research, the most probable explanation for human geophagy—the eating of earth—is that it protects the stomach against toxins, parasites, and pathogens. The first written account of human geophagy comes from Hippocrates more than 2,000 years ago, says Sera Young, a researcher at Cornell University and the study's lead author....

Despite potential tax and investment problems, more investors have been borrowing from their 401(k) plans or taking hardship withdrawals in recent months, some retirement plan providers say. Many in the field expect more borrowing in 2008, as consumers struggle with tighter credit and potentially higher mortgage payments. "I don't think it's a groundswell but it's enough to be noticed," said Rick Meigs, president of 401khelpcenter.com, which provides information on 401(k) plans. Increased borrowing on 401(k)s could be because of the credit crunch and slumping housing prices. To be sure, the indications are preliminary; it's too early to say why it's...