Thursday, March 6, 2008

The human body mimics a flex fuel vehicle...(huh?)

It's an odd connection indeed, but here's a very interesting article about how the human body essentially acts like a flex fuel vehicle in the way that it alternates between burning glucose (during the day) and fat (during the night).

Just like a flex-fuel vehicle that can run on either gasoline or ethanol, the human body can switch between different types of fuel: During the day the body mostly burns glucose, and during the night or prolonged fasting, it burns primarily fat. But neither flex-fuel engines nor human brains can run on ethanol or fat alone - a little bit of gasoline or glucose needs to be thrown into the mix to keep either one of them humming.
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