Light rail commuters like these in Charlotte, N.C., lost weight by taking the train.
June 30, 2010 Taking the train to work more than once a week helped North Carolina commuters lose more than six pounds per person.
Schools could play a role in fighting childhood obesity.
June 29, 2010 Fewer middle school students were obese after three years at schools that emphasized exercise and nutrition compared with those that did nothing special.
June 28, 2010 Immunization of people against whooping cough is necessary to reduce the risk of infection for babies.
June 25, 2010 Breads, grain-based dishes and processed meats are some of the big contributors of dietary salt.
June 24, 2010 An epidemic of pertussis has emerged in California, where five infants have died from the infectious cough already this year.
June 23, 2010 Safety concerns and ballooning costs provide strong incentives for doctors to be more prudent in ordering CT scans.
Workers clean up a stretch of oil-contaminated beach in Grand Isle, La.
Spencer Platt/Getty Images
June 23, 2010 A researcher who probed the health effects of the Exxon Valdez oil spill warns that lawyers could breach the confidentiality of people in the Gulf who agree to be studied.
June 22, 2010 Four of the top 10 companies were American, a slight improvement from the rankings compiled in 2008.
Shrek might be sad if he's banned from McDonald's Happy Meals.
June 22, 2010 McDonald's Happy Meal toy promotions prompt kids to pester parents and foster lifelong poor eating habits, the Center for Science in the Public Interest claims.
The Coast Guard Cutter Tornado busted some shrimp boats in the Gulf of Mexico.
June 21, 2010 About 30,000 pounds of shrimp were returned to Gulf of Mexico waters after the Coast Guard boarded two vessels that had been fishing in prohibited waters.
June 16, 2010 Conserving rain forests in the Amazon helps contain mosquitoes that spread malaria.
NOAA is checking yellow fin tuna like this guy to make sure he's not contaminated with oil.
June 15, 2010 NOAA's chief scientist Steve Murawski tells us there’s a whole lot of testing going on to make sure oil doesn't make it to the fish on our dinner plates.
Drug-resistant strains of major infectious diseases, such as tuberculosis have already emerged.
Janice Haney Carr/CDC
June 15, 2010 Bugs resistant to treatment are fueling a growing health threat in developing and developed countries. A new report says a concerted international effort to fight the problem is needed.
June 11, 2010 Abortion opponents are gearing up for battle over new longer-acting emergency contraceptive. The drug would be marketed in the U.S. under the brand name "Ella."
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Researchers found that the teen car crash rate was 41 percent higher in Virginia Beach, Va., than in neighboring Chesapeake. The school day begins 80 minutes later in Chesapeake.
June 9, 2010 A study comparing two similar cities in Virginia found that teens whose high schools started earlier in the day were more likely to have had a car crash.
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