While it's widely known that chewing more improves digestion, research suggests it can also boost our brains and even help fend off Alzheimer's. For once chewing a shallot 722 times before swallowing it, Horace Fletcher was dubbed "The Great Masticator". The American self-taught nutritionist believed food should be chewed "until it is completely liquefied" and it "practically swallows itself". Fletcher even estimated that vigorous chewing could have saved the US economy of the early 20th