CNN Health

After improving for years, a new working paper finds that air quality in the US is on the decline again and could be linked with almost 10,000 premature deaths in 2018.

Researchers have found an unlikely but compelling example of sex bias in the natural history collections of museums around the world.

It's 3 a.m. and you're wide awake for the second night in a row. You get up and stumble to the kitchen for some warm milk mom swears will put you to sleep.

Moms-to-be who undergo physical or mental stress during their pregnancies are less likely to have a boy and may also have a higher risk of preterm birth, according to a study published Monday.

M.J. Crumity was just an ordinary eighth-grade boy playing dodgeball in his gym class in Florida on October 1 when his pacemaker quit working. What happened next was extraordinary.

A North Carolina company has issued a recall on an undisclosed amount of chicken pie and meat loaf products because the labeling did not indicate they contain allergens.

Six drug companies accused in thousands of lawsuits over their role in the nation's opioid epidemic failed to reach a settlement with governments across the country, setting the stage for a high-profile trial Monday.

Johnson & Johnson announced on Friday that it's initiating a voluntary recall in the United States of its popular Johnson's Baby Powder due to low levels of asbestos contamination.

Another person has died from an outbreak of Legionnaires' disease in North Carolina, bringing the death toll to four.

This gradually evolving virus spreads easily from person to person, and can be deadly for high risk groups such as the very young and old.

A new study suggests that vaping e-liquids, specifically propylene glycol and glycerin, may lead to some inflammation in the lungs -- but more research is needed to determine just how much inflammation over a prolonged period of time may occur.

Some sun protection may come at a steep price for the ocean's coral reefs. Now, a Florida state senator wants to ban some sunscreens entirely for the potential harm they cause marine life.

Americans spent $1.4 billion on the most popular brands of children's fruit drinks and flavored waters last year. Yet according to nutritional guidelines, none of the drinks were healthy.

The Oklahoma judge who recently ordered pharmaceutical giant Johnson & Johnson to pay $572 million for its role in the state's opioid crisis says he made a mathematical error when calculating the judgment.

A third person has died from an outbreak of Legionnaires' disease in North Carolina, state health officials said.

Pink tax, tampon tax, period tax -- the rule goes by different names, but all refer to the sales tax people pay to purchase pads and tampons.

Do you compulsively scrub your toilet for fear of germs? Good for you, but how often do you change your bath and hand towels?

The climate crisis is going to raise the risk that Ebola will spread farther and reach areas previously unaffected by the virus, according to a study published Tuesday in the journal Nature Communications.

When it comes to concussions in high school sports, there is good news and bad news, a new study suggests.

About 2 million pounds of seasoned beef used in Taco Bell burritos and tacos have been removed from restaurant locations across the country.