The earliest humans used plants for medicine as well as for food. By medieval times, people were making huge amounts of money trading spices around the globe. People wanted to make their food taste good, of course. But the perceived medicinal benefits also were extremely important. According to author Jack Turner, “In the medieval mind, spices and medicine were effectively one and the same. Not all drugs were spices, but all spices were drugs.” An 11th-century monk named Constantine wrote that ginger, cinnamon, galangal (a root related to ginger) and pepper could be used to treat impotence. Indeed, the search […]