CNN Health

Being a mother has affected tennis superstar Serena Williams in countless ways. For one, it has motivated her to use her voice, she told CNN.

A polio outbreak has been confirmed in Morobe Province of Papua New Guinea, the World Health Organization reported Monday.

Galvanized by the issue of teachers pay and school funding, Oklahoma teachers marched and protested in the state Capitol earlier this year. Fed up with their lawmakers, some even decided to run for state office.

There has been vigorous debate about how to prevent people with mental illness from acquiring weapons. But what about firearms in the homes of aging Americans with impaired or declining mental faculties?

It's called "micro-cheating": the small, seemingly innocuous acts of flirtation that don't necessary qualify as cheating but might be considered a little sketchy by your partner.

Oklahomans voted in favor of legalizing medicinal marijuana Tuesday, with 56.8% approving the measure, according to unofficial results with 99.6% of precincts reporting.

Cocaine supplies and heroin seizures have hit a record high, a new report finds.

An Arizona woman has criticized Walgreens on social media, saying a pharmacist at the chain refused to fill her prescription for a medicine prescribed to induce miscarriage after she was told her 9-week-old fetus had stopped developing.

There's a surprising upside to the virus that causes crippling polio disease, new research indicates.

An Ohio judge has ordered that a committee oversee the progress of over 50 lawsuits against University Hospitals in Cleveland, where more than 4,000 embryos and eggs belonging to an estimated 950 families become unviable after a cryopreservation system malfunctioned.

Could pills soon replace insulin shots for diabetes patients? Here's a look at the latest technology and research behind developing insulin you can swallow.

Residents of Arkansas are one step closer to getting legal access to medical marijuana.

The US Food and Drug Administration approved a cannabis-based drug for the first time, the agency said Monday.

More than 11,200 calls concerning children's exposure to buprenorphine, an opioid medication used to treat opioid use disorder, were made to US poison control centers from 2007 to 2016, a new study found. Eighty-six percent of the exposures were in children below the age of 6; 89% of the exposures were unintentional.

Learning that a child is seriously -- or even terminally -- ill is overwhelming and life-changing.