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In order to answer this question, let's understand how chewing gum came into being in the first place. People since ancient times around the world chewed natural materials. First it was hardened resin and milky sap of trees, various sweet herbs, leaves, grains and waxes. For example, in Greece, the resin of the mastic tree was chewed to cleanse the teeth and refresh the breath. The Indians quenched their thirst with the resin of conifers. In Russia, larch resin was used. In the early 19th century, pieces of resin began to be sold. Then the resin was replaced by sweetened paraffin wax. Modern chewing gum came from chewing gum made of chicle, which is the sap of the sapodilla tree from the rainforests. Then they started using rubber to create chewing gum to exercise the jaws and strengthen the gums. Nowadays, chewing gum is made from artificial latex, and chewing gum has become more elastic and less sticky. About the effect of chewing gum on people and their health many studies have