Decoding Cancer

The first map of breast-tumor genomes could revolutionize patient care

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    Researchers in Utah show that a 24-hour fast can lead to favorable changes in cholesterol and blood-sugar levels, which suggests that supervised fasting may help combat heart-disease risk. But even the authors aren't ready to endorse it just yet--at least not until further work reveals whether there is a safe way to skip calories. Not eating triggers the stress response, so repeated episodes of fasting may end up straining and damaging the heart.

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