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Reseachers from John Hopkins Cancer created a statistical model measuring the proportion of cancer incidence caused by random mutations during stem cell division; this was published in the journal, Science in January of 2015. They concluded that 2/3 of cancers can be explained by "bad luck." What they really determined was an association rather than...

The first US case of mad cow disease in six years was found in central California in a dairy cow that was not slaughtered for food. It has not been reported to be transmissable in milk. Testing of downer cows is only about 0.2%, so we cannot rest assured that Americans are not being exposed to a lot of cows that have the disease but are not yet sick enough to...