Socially isolated older adults have a 27% higher chance of developing dementia, according to researchers from Johns Hopkins. The findings suggest that simple interventions could be meaningful.
NPR's Scott Simon talks to Admir Masic, professor of civil and environmental engineering at MIT, about what made concrete used by Ancient Romans so incredibly durable.
The CDC has expanded screening of incoming international air travelers to try to more quickly spot any new variants that might emerge from China's massive COVID outbreak.
A killer whale more than 20 feet long died after beaching itself in Palm Coast, Fla. This is the third known orca to be stranded in the southeastern U.S. and the first since 1956, an official says.
Exxon's climate research decades back painted an accurate picture of global warming, according to a new scientific paper. Still, the oil company continued climate-denying policy efforts.
MIT Technology Review has released its annual list of breakthrough technologies. NPR's Mary Louise Kelly speaks with Amy Nordrum, an editor who helped put the list together.
In a victory for animal rights advocates, drugmakers can take their products to human clinical trials using alternative testing methods that don't involve animals.