Some Tooth Serum

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Reaching for a diet drink that’s artificially sweetened? Don’t bother. The human brain can’t be duped by false sweetness. That’s the truth. So says a study by Guido Frank of the University of Colorado, published in the journal New Scientist. Using MRI, he measured the difference between the brain’s responses to sucrose and sucralose. Real sugar lit up the ‘reward’ areas of the brain and created a sense of satiety. The reaction to sucralose was dimmer and it didn’t endow satisfaction either, “which could drive you to eat something sweet later”, says Frank.