A big study suggests that radiologists vary widely in their assessment of density, a risk factor for breast cancer. And density is just one component of breast cancer risk, the researchers underscore.
Federal and Utah health officials are investigating a case that may be the first instance of Zika spreading from one person to another in ways other than via mosquito bites, sex, or the placenta.
A new standardized docking port is bound for the International Space Station, in a mission that brought a sonic boom to Central Florida early Monday morning.
A recent poll shows stress tops the list for people concerned about the impact of their job on their health. Workplace wellness programs often address stress, but many employees don't sign up.
Research shows exercise-based cardiac rehab programs help heart patients heal faster and live longer. But fewer than a third take part. Time and cost are the main barriers, doctors and patients say.
The port city is hosting the International AIDS conference for a second time. NPR's Jason Beaubien tells NPR's Lynn Neary that much progress has been made in combating AIDS, but more needs to be done.
Psychologist Steven Pinker's book The Better Angels of Our Nature explains that the world is actually growing less violent, even though the media may give a different impression.
In 2009, a chemist and his students stumbled across a blue pigment that had never before been seen. Now that it's been licensed for commercial use, you may start seeing it everywhere.
New studies prove that dinosaurs may not have roared in their days on the earth. NPR's Linda Wertheimer talks to paleontologist Julia Clarke about her new discovery — the cooing sounds of dinosaurs.
When someone's angry we tend to get angry in return. But responding in an unexpected way is a valid tool in psychotherapy, and it can help make everyday relationships work better, too.
The Faroe Islands tourism board launched a campaign called Sheep View 360, shot by attaching cameras to some of the archipelago's many sheep.
Philosopher John Searle argues that consciousness is what makes us human. He makes the case for studying consciousness and accepting it as a biological phenomenon.
Psychologist Steven Pinker describes how far we've come in understanding how both nature and nurture make us ... us.
Biochemist Sam Sternberg describes how recent developments in gene editing technology may help end many diseases and even control our own evolution.
NPR's Alix Spiegel, co-host of the podcast and program Invisibilia, tells the story of a robbery that was halted when a woman decided to respond to the threat in an unexpected way — with kindness.
Scientists have long assumed that farming began among one group in the Mideast. But a new study suggests a more diverse origin story.
Muslim youths in Denmark were leaving to join ISIS in Syria, feeling they were being persecuted in Europe. Then the police in Aarhus responded in a completely unexpected way: They apologized.
Scientists have evidence that the epidemic in Latin America may have started to subside. But the U.S. isn't out of the woods yet.
A new study looks at the link between racial bias and the Tea Party. Researchers found that people who looked at images of Barack Obama that were edited to make his skin look darker were more likely to express support for the Tea Party.
Neil Hammerschlag has looked inside the mouth of a wild tiger shark and lived to tell the tale. He says that sharks pose only a very small risk to people: "Humans are not on the shark's menu."