This summer, several outbreaks of illness caused by the parasite  Cyclospora swept across the US. Many of those illnesses occurred in Texas, and the infection source was unknown.

The Internet is an increasingly popular source for health and wellness information. And while being online offers a rich and ongoing supply of information, researchers wanted to know if the Internet helped change behaviors.

While detecting cancer early is essential to beating the disease, some screenings can overdiagnose — that is, they might pick up cancers that won’t ever be a problem, which can lead to unnecessary treatment.

In the US, someone has a stroke every 40 seconds. To lower that rate, the American Stroke Association is urging people to learn the stroke warning signs for World Stroke Day on October 29.

In the age of the internet, people can order pretty much anything online. For mothers who cannot nurse their babies, even breast milk is available — but it may not be safe.

Injuries are basically the only downside of exercise, and many sports injuries can be tough to treat. But certain types of exercise may help people prevent these sports injuries.

It's not uncommon for hospitalized patients to have weakened immune systems that aren't able to fight off infections. And that can make a hospital stay a risk to sick people.

As if the West Nile virus wasn't enough of a reason to try to stay away from mosquitoes, residents of California now have a new reason to avoid these bug bites. State officials have discovered a type of mosquito known to carry other, sometimes serious, diseases.

Kids will be kids — running around, scraping knees and occasionally bonking their heads on the table. But what if a more serious head injury occurs? How do these injuries affect a still-growing brain?

As the winter months approach and people spend more time inside, hospitals might begin to see more and more cases of carbon monoxide poisoning.