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Chew on that

The British are famous for their bad teeth - to Americans, at least, who believe no graduation photograph is complete without a full set of unnervingly-white gnashers. Fluoride toothpaste has improved matters recently, but new research means the dentally-challenged can once again hold their heads high and mouths open. For swigging a glucose drink whilst revising and sitting exams armed with sticks of chewing gum apparently boosts memory. Exam certificates - who needs them? Just count the fillings.

Presumably, ambitious schools will make possession of chewing gum and Lucozade compulsory, and inventive kids will smuggle exam answers past invigilators on Wrigley's wrappers. Parents will implore their children to quaff glucose drinks. Brain Gum (already on sale in the US - where else?) will be imported by a sharp entrepreneur. But the findings may not be as sweet as they sound. Some researchers have connected tooth loss with memory loss. So make that gum sugar-free, or risk senility.

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