"Moderate increases in temperature and rainfall can herald cholera epidemics, a study in East Africa has found, and researchers urged governments to use those environmental cues to better protect vulnerable populations."

"A World Health Organization panel has concluded that cellphones 'possibly carcinogenic,' putting the popular devices in the same category as certain dry cleaning chemicals and pesticides, as a potential threat to human health."

"Japan will pay schools near the quake-ravaged Fukushima nuclear power plant to remove radioactive top soil and set a lower radiation exposure limit for schoolchildren after a growing outcry over health risks."

"Concerned about the threat of a catastrophic outbreak of a herpes virus among wild horse herds in the West, national animal advocates on Thursday called on the federal government to keep potentially infected domestic horses away from mustangs and burros on public lands."

"A bidding war is heating up among users of corn in the United States as livestock feeders and ethanol makers scramble to lock in supplies before extremely low stocks run dry by this summer."

"While you're out buying the charcoal briquets for your Memorial Day barbecue this year, you'll probably want to pick up some sunscreen, too. But, of the dozens of varieties that appear on store shelves, which is the best one to buy?"

"The food and advertising industries are pushing back against an Obama administration proposal that calls for food makers to voluntarily limit the way they market sugary cereals, salty snacks and other foods to children and teens."