In 1987, after several years as an assistant lab technician in Colorado hospitals, he joined the Peace Corps and was posted to an Ecuadoran village high in the Andes. He was charged with monitoring the health of tribespeople in the area, teaching first aid and nutrition, and handing out medicine where needed; his proudest achievement was delivering three babies. The tribe had been getting richer for a decade, and during the two years he was there he watched as the villagers began to adopt the economics of modernity. They sold the food from their fields—quinoa, potatoes, corn, lentils—for cash, which they used to purchase things they didn’t need, as Suelo describes it. They bought soda and white flour and refined sugar and noodles and big bags of MSG to flavor the starchy meals. They bought TVs. The more they spent, says Suelo, the more their health declined. He could measure the deterioration on his charts. “It looked,” he says, “like money was impoverishing them.