Science News

Women who use certain types of hormones after menopause still have an increased risk of developing breast cancer nearly two decades after they stop taking the pills, long-term results from a big federal study suggest.

Beneath the surface of one of Germany’s deepest lakes, researchers are studying the hidden effects of artificial light.

New research gives some biological clues to why women may be more likely than men to develop Alzheimer’s disease and how this most common form of dementia varies by sex.

A healthy lifestyle can cut your risk of developing Alzheimer’s or other forms of dementia even if you have genes that raise your risk for these mind-destroying diseases, a large study has found.

Government scientists are starting to peek into the brains of people caught in the nation’s opioid epidemic, to see if medicines proven to treat addiction, like methadone, do more than ease the cravings and withdrawal.

Nearly 40 years after it was found by a monk in a Chinese cave, a fossilized chunk of jawbone has been revealed as coming from a mysterious relative of the Neanderthals.

Anatomy at birth may prompt a check in the “male” or “female” box on the birth certificate — but to doctors and scientists, sex and gender aren’t always the same thing.

The Trump administration purportedly is considering defining gender as determined by sex organs at birth, which if a

One out of every seven babies born to U.S. mothers who were infected with Zika during pregnancy developed some kind of health problem, according to the first long-term look at those children.

Think of the worst pill you’ve ever had to take — something big, bitter, and chalky with a terrible aftertaste. Would you rather have to swallow that pill, or a small helping of someone else’s feces?

It’s a scary world out there. But from the moment we are born, an entire battalion is armed and at the ready to offer us protection against the perils of the world around us — and it’s not even human.

Do you really want to eat that second slice of cake?

Oh, no — you look great! I only ask because it may not actually be you who wants it.

Let me explain. What if I told you that there were a few trillion extra cells inside your body scarfing down the food you eat, cont

A deep dive into the controversial use of antibiotics in livestock.