Matching Pairs CHEWING GUMOnline version CHEWING GUM by Royner Villalobos 1 Chewing gum dates back millennia, 2 Chewing gum may enhance concentration, 3 Chewing gum comes in various flavors 4 Each American chews about 1.8 pounds 5 Some studies suggest chewing gum 6 The US dominates the chewing gum market, 7 Chewing sugar-free gum after meals aids saliva production, 8 Global chewing gum sales reached 9 Sugar-free gum comprises (800 grams) of gum annually. improves cognitive function and memory. over 80% of US gum sales. used by ancient civilizations like the Mayans. accounting for over 30% of sales. and forms, including sticks and pellets. reduce stress, and boost alertness. reducing tooth decay risk. $19.5 billion in 2020.