LetsUpp English - Chewing gum can help you stay focused for longer on tasks that require continuous monitoring. Previous research has also shown that chewing gum can improve concentration in visual memory
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Pavement Picasso: on the trail of London's chewing gum artist | Street art | The Guardian
CHEWING GUM | English meaning - Cambridge Dictionary
History of Gum - CafosaCafosa
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1950s advertising. Original 1950s vintage old print advertisement from English magazine advertising Wrigley's chewing gum circa 1954 Stock Photo - Alamy
Banana chewing gum from Oman English side | Phil | Flickr
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Chewing Gum - Natural Health & Beauty - Glimja English
Joe Pisani (opinion): Chew on this — gum can make you smarter
Gum control: how Lee Kuan Yew kept chewing gum off Singapore's streets | Food | The Guardian
Which Chewing Gum Lasts the Longest? We Timed 14 Brands. - Thrillist