Pencils ready — now chew! Gum chewing has been shown to boost blood flow to the brain, enhancing alertness, focus and ...

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They recruited 52 healthy university students from Daegu, South Korea, and divided them into two groups. One group of 27 subjects was given paraffin wax gum to chew; a second group of 25 was asked to ...

Chewing harder materials like wooden sticks can boost brain glutathione levels and improve memory performance, according to South Korean research.

The study involved 52 university students split into two groups, one chewing soft paraffin wax gum and the other biting on wooden tongue depressors. Researchers controlled the chewing pattern ...

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Sure enough, chewing raised glutathione levels in the anterior cingulate cortex — the part of the brain they studied — but markedly more so among those who chewed on wood. The concentration was ...

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They used tongue depressors, similar to popsicle sticks, for the wood. And to make sure the difference wasn't in chewing style, each participant had his or her head stabilized in a fixation device.