"The Obama administration on Thursday announced measures to tackle the growing threat of antibiotic resistance, outlining a national strategy that includes incentives for the development of new drugs, tighter stewardship of existing ones, and improvements in tracking the use of antibiotics and the microbes that are resistant to them."

Researchers are finding increasing evidence that environmental factors -- ranging from exposure to toxic chemicals to physical and mental exercise -- can have important effects on aging brains. While older people may have a surprising capacity for neurological regeneration, chemical exposures (even exposures earlier in life) have been linked to neurological disorders such as Alzheimer's and Parkinson's diseases.

"New York City children exposed in the womb to moderate levels of two plasticizers had a 72 to 78 percent higher chance of developing asthma, according to a new study published [Wednesday]."

"Government inspectors all over the country are supposed to ensure the meat we eat is safe. But according to a growing chorus of current and former inspectors - and a number of watchdog groups - the U-S meat inspection system isn’t doing its job."

"Coal miners in Kentucky and other parts of Appalachia are contracting serious cases of black lung disease at rates not seen since the early 1970s — just after preventive regulations were enacted, according to a study published Monday."

"Major U.S. poultry firms are administering antibiotics to their flocks far more pervasively than regulators realize, posing a potential risk to human health."

"Efforts to come up with a new chemical regulation bill face an uphill battle in the Senate."

After an outbreak of drug-resistant salmonella in 2013 was traced to Foster Farms chickens, the Natural Resources Defense Council used the Freedom of Information Act to get records of the firm's food-safety violations. As a result of the pressure, Foster Farms says it has cleaned up its act and is using less antibiotics.

"Some workers at oil and gas sites where fracking occurs are routinely exposed to high levels of benzene, a colorless gas that can cause cancer, according to a study by the National Institute for Occupational Health and Safety."