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Service dogs help veterans with physical disabilities, and there's increased interest in using dogs for symptoms of post-traumatic stress disorder, too. A study is underway to see whether that helps.

Earthworms are a source of protein, calcium and much more. But they may not be the top option for feeding a hungry world.

More than 100 Russian athletes were banned from the Rio Olympics. Rachel Martin speaks to German TV journalist Hajo Seppelt, who helped break the story of the program in Russia in a documentary.

Researchers analyzing recent drug spending in the U.S. say that high-priced drugs for rare diseases aren't having a widespread or significant effect on overall health care spending.

A selection of winning photos from Getty Images second annual Instagram Grant highlights stories from Latin America, Ethiopia and India.

Airplanes are a remarkably safe way to travel, but small children can be injured while aloft. Skipping the hot coffee and putting small ones in the window seat can help, pediatricians say.

A former punk rocker, a former mayor and a multilingual epidemiologist are among the six nominees vying for the top job at the World Health Organization.

Brazil's political and economic meltdown creates challenges for doctors trying to get a handle on the outbreak.

Since Trump secured the GOP nomination, he has done little to quell concerns of many Republicans. Maryland's and Ohio's GOP governors are now among those refusing to endorse him.

If not for flawed classification of deaths, medical mistakes would be the third leading cause of U.S. deaths, Johns Hopkins researchers say. They're calling on the CDC to track deaths from errors.