The Surprising Healing Qualities ... of Dirt [View all]

[Coyotl]

The Surprising Healing Qualities ... of Dirt
A doctor discovers exposure to healthy farm soil holds keys to healthy bodies.
by Daphne Miller - Dec 06, 2013 - http://www.yesmagazine.org/issues/how-to-eat-like-our-lives-depend-on-it/how-dirt-heals-us

Recently I’ve been enjoying dirty thoughts. I spend my days in a sterile 8x10 room practicing family medicine and yet my mind is in the soil. This is because I’m discovering just how much this rich, dark substance influences the day-to-day health of my patients. I’m even beginning to wonder whether Hippocrates was wrong, or at least somewhat misguided, when he proclaimed, “Let food be thy medicine.” Don’t get me wrong—food is important to our health. But it might be the soil where our food is grown, rather than the food itself, that offers us the real medicine.

You would find little to support these assertions within the medical literature. Enter the terms “soil” and “health” into a PubMed database and the top search results portray soil as a risky substance, filled with pathogenic yeast, antibiotic-resistant bacteria, radon, heavy metals, and pesticides. But move past these grim reports, and you will uncover a small, but growing, collection of research that paints soil in a very different light. These studies suggest that soil, or at least some types of soil, can be beneficial to our health.

The scientists investigating this soil-health connection are a varied bunch—botanists, agronomists, ecologists, geneticists, immunologists, microbiologists—and collectively they are giving us new reasons to care about the places where our food is grown.
Lively soil, better food

For example, using DNA sequencing technology, agronomists at Washington State University have recently established that soil teeming with a wide diversity of life (especially bacteria, fungi, and nematodes) is more likely to produce nutrient-dense food. Of course, this makes sense when you understand that it is the cooperation between bacteria, fungi, and plants’ roots (collectively referred to as the rhizosphere) that is responsible for transferring carbon and nutrients from the soil to the plant—and eventually to our plates.

Given this nutrient flow from soil microbes to us, how can we boost and diversify life in the soil? .............