Polio :: Billions of dollars saved in US by polio vaccination

A new study by researchers at the Harvard School of Public Health (HSPH) finds that polio vaccination in the United States has resulted in a net savings of over $180 billion, even without including the large, intangible benefits associated with avoided fear and suffering.

Language :: Internationally adopted children shed light on how babies learn language

Each year, about 40,000 children are adopted across national lines, primarily by families from North America and Western Europe. These joyful occasions mark the growth of new families and also provide the framework for a natural experiment in language development. Although most are infants and toddlers, thousands of older children are also adopted. Typically, these older children loose their birth language rapidly and become fluent speakers of their new language.

Infant :: Low blood sodium babies crave salty food

A new study concludes that low birthweight babies born with low sodium in their blood serum will likely consume large quantities of dietary sodium later in life. Researchers also found that newborns with the most severe cases of low sodium blood serum consumed ~1700 mg more sodium per day and weighed some 30 percent more than their peers.

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