CNN Health

The DEA declined to loosen restrictions on medical marijuana which could delay help to many.

It may not be Silicon Valley but it's where many tech companies of the East want to be.

More than half a century before the Zika virus grabbed international headlines and photos of newborns with abnormally small heads were splashed across our screens, a different outbreak that affected pregnancies fueled change in the United States.

Researchers have just witnessed something that they say has never before been seen in the field of medicine: Patients who have been severely paralyzed for more than a decade have regained some sensation and neurological control in key muscles.

On June 6, 2006, 29-year-old Matthew Reif of Phoenix, Arizona, lost his life in a car accident.

The US fertility rate fell to the lowest point since record keeping started more than a century ago, according to statistics released by the Centers for Disease Control and Prevention.

The Drug Enforcement Agency will announce Thursday that marijuana will remain a schedule 1 drug, which declares it has "no medical use or purpose," according to a U.S. official familiar with the decision.

You won't believe the many ways Olympians have tried to boost their odds over the years in their race for the gold.

Massachusetts health authorities are investigating an allegation that a surgeon removed a kidney from the wrong patient.

Warranties may be the next trend in pharmaceutical medicine: In Europe, a new gene therapy from GlaxoSmithKline will be offered with a money-back guarantee. If Strimvelis fails to cure the rare disorder commonly referred to as bubble boy disease, a patient will be refunded in full, the company says.

This season's blockbuster isn't showing in theaters, it's lighting up the skies overhead.

Police in Yukon, Oklahoma, showed up at an autistic 3-year-old's birthday party when none of his friends would.

Perfectly circular bruises are adorning the bodies of Olympians in Rio this summer after the sudden popularity of cupping -- an ancient therapy practiced as far back at the 6th century. CNN explores some of the more gruesome, but surprisingly commonplace, medical practices used to treat ailments throughout history.

Modern humans' ancient relatives were probably not Mensa material, but an exciting new discovery by paleoanthropologists suggests they were much more sophisticated than scientists had thought.

Over the past few years, there has been a steady flow of articles in magazines, newspapers and online news outlets examining what hookup culture on college campuses means for sexual norms and behaviors among young adults, particularly young women.

Your taste in music might have more to do with the culture around you than how your brain is wired.

A German flight attendant had her life veer into a Disney movie territory when she adopted a stray dog from the streets of Buenos Aires.

It's a dynamic that just about any parent can relate to: Your child does something wrong, such as hitting their sister or yelling at a friend, you encourage them to apologize, they refuse, and then they barely say the word "sorry."

Millions of Americans may be drinking water with unsafe levels of industrial chemicals, according to a study published Tuesday in the journal Environmental Science & Technology Letters. These chemicals, known as polyfluoroalkyl and perfluoroalkyl substances or PFASs, have been linked to high cholesterol, obesity, hormone suppression -- and even cancer.