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The extent to which vitamin D deficiency may increase susceptibility to a wide range of diseases is dramatically highlighted in newly published research. Scientists have mapped the points at which vitamin D interacts with our DNA — and identified over two hundred genes that it directly influences. Read More at Science Daily.

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You may have read about everyday objects setting off radiation alarms at border crossings between the US and Canada and Mexico. Newsweek has an article describing how medical radiation treatments (e.g., bone scans) may lead to traveling delays when they trigger radiation sensors. When the sensors are tripped, border officials conduct more intensive inspections to make sure you aren’t carrying nuclear weapons. There are other ways to set off the alarms. Do you carry kitty litter in your car to help provide traction in icy weather or to absorb oil? It’s slightly radioactive. Do you have tile or granite in your vehicle for a home improvement project? It has a relatively high radiation signature. Do you have a lot of bananas? They are also slightly radioactive.

Full article at About.com