In the past, people thought that salt boosted health- so much so that the Latin word for "health"- "salus"- was derived from "sal," the word for salt. In medieval times, salt was prescribed to treat a multitude of conditions, including toothaches, stomachaches and "heaviness of mind."… "We humans eat more salt than is necessary. But we all do it. So the question is: Why?" says Paul Breslin, a professor of nutritional sciences who researches sodium appetite at New Jersey’s Rutgers University… Breslin believes there may be another evolution-based reason why we love salt: "Salt accelerates sexual maturation in animal models, resulting in more offspring," he says.
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