AP - For the first time, U.S. life expectancy has surpassed 78 years, the government reported Wednesday, although the United States continues to lag behind about 30 other countries in estimated life span.

AP - The first experimental bird flu vaccine made from lab-grown cells instead of chicken eggs shows promise in blocking the highly lethal virus, scientists report.

AP - Dairy owner Mark McAfee started selling raw milk in 2000, marketing it to customers who believe it contains beneficial microbes that treat everything from asthma to autism.

AP - The percentage of underweight babies born in the U.S. has increased to its highest rate in 40 years, according to a new report that also documents a recent rise in the number of children living in poverty.

AP - Marijuana potency increased last year to the highest level in more than 30 years, posing greater health risks to people who may view the drug as harmless, according to a report released Thursday by the White House.