President Obama signs a series of executive orders Wednesday about the administration's gun law proposals as Vice President Biden and children who wrote letters to the White House about gun violence look on. Chip Somodevilla/Getty Images hide caption

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Some parents have worried that kids get too many vaccinations too quickly. A review of all the available research suggests those concerns are misplaced. Dmitry Naumov/iStockphoto.com hide caption

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Health care reform should make it easier for many children to get routine dental checkups that are covered by insurance. Terry J Alcorn/iStockphoto.com hide caption

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Four-year-old Gabriella Diaz gets a flu shot at the Whittier Street Health Center in Boston, Mass., on Wednesday, the same day the city declared a public health emergency. Charles Krupa/ASSOCIATED PRESS hide caption

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Many popular food games for computers and devices like tablets are actually "advergames", created by food manufacturers to market their products to kids. iStockphoto.com hide caption

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