Monday October 22, 2007, 7:38 pm
Forget the ads for waistband-jiggling vibration belts guaranteed to "burn away fat." These mice experienced very subtle, almost undetectable, tremors.

Scientists theorize that as the mice developed, the vibrations mimicked muscle activity and induced their stem cells to develop into bone or muscle cells rather than fat cells.

"We're not burning fat or taking fat mice and making them skinny."