abcnews.go.com — Mental work "destabilizes" the levels of insulin and glucose, two critical components in the body's regulatory and energy machinery, thus stimulating the appetite. The brain uses only glucose for energy, unlike the "muscles, which use fat and glucose, So when the level of glucose, or sugar, becomes unstable, the brain demands more.
Sep 30, 2008 View in Crawl 4
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It's quiet in here... can you hear the echo?