CNN Health

The skin of a 67-million-year-old dinosaur has revealed bites and gashes from an ancient crocodile, and how its flesh was ripped apart may explain why it became mummified.

US health officials are becoming increasingly concerned about this year's flu season -- and are already seeing signs that the virus is spreading.

Poor mental health among teens in the United States was a concern before the Covid-19 pandemic, and major disruptions to school and social life since early 2020 have only exacerbated the situation.

We know changes in the weather and seasons can affect mood, causing run-of-the-mill rainy-day blues and seasonal affective disorder. Now, it's also important to recognize the harmful mental and physical health effects of long-term climate change.

Astronomers have spotted an unexpected chemical element high within the atmosphere of two sizzling exoplanets where liquid iron and gems rain down from the skies.

New testing on a variety of popular branded sports bras and athletic wear has revealed high levels of BPA, a chemical compound that's used to make certain types of plastic and can lead to harmful health effects such as asthma, cardiovascular disease and obesity.

Practices in which kids don't pummel each other are exactly what the authors of a new study say it may take to reduce the number of chronic brain problems in high school football players without getting rid of the sport altogether.

After the US Supreme Court overturned Roe v. Wade in June, an obstetrician who works at a hospital in the Northeast thought she could make a difference by publicly describing what she was seeing, by telling the stories of the patients she saw suffering in the aftermath of the court's historic court ruling.

Covid-19 patients with a history of cardiovascular disease are at an increased risk of developing severe illness and could benefit most from the Covid-19 treatment Paxlovid -- but there's a catch.

SpaceX said Wednesday that it has booked yet another mission around the moon for a wealthy thrill-seeker on its forthcoming Starship spacecraft.

The US Centers for Disease Control and Prevention signed off Wednesday on the use of updated Covid-19 boosters for children as young as 5. Earlier in the day, the US Food and Drug Administration expanded the shots' emergency use authorization to include this age group.

Last week, the US Centers for Disease Control and Prevention announced it would no longer be maintaining a country-by-country travel advisory of Covid-19 risk. Instead of assessing the level of Covid-19 infection in each country, the CDC will post notices only when there are new variants or other situations that would change its travel recommendations.

About half of registered voters in the United States say they are more motivated to vote in next month's midterm elections than they were in previous elections -- and abortion is a key issue driving that motivation, according to new survey data from the Kaiser Family Foundation.

Ancient Egypt exerts a powerful pull on the imagination of every generation, refusing to stay buried in the past.

About 85% of girls suffer painful bloating, cramps and abdominal pain during their monthly periods — and for some the problems can last for years.

An inexpensive polypill is probably one of the best ways to solve the world's heart problems, cardiologists say. This approach to medication for heart disease, which experts say could save millions of lives and spare millions more from heart problems, is not available in the United States. And in places where it is used, it's underutilized, some experts say.

About 36% of all US counties are "maternity care deserts," and the number of counties where there is limited or no access to maternity care appears to be growing, according to a new report.

For the first time, the US Preventive Services Task Force has recommended screening for anxiety in children 8 and older.

Research shows sharp spikes in depression and anxiety among girls in recent years. Donna Jackson Nakazawa explores why in her book "Girls on the Brink: Helping Our Daughters Thrive in an Era of Increased Anxiety, Depression, and Social Media."