Three free brain games for your phone can help with memory, attention, and flexible thinking. And unlike with other games, there's research to back up the benefits.

Children are eager to retaliate but need some help learning to repay a favor, research on reciprocity suggests.

Twice as many people as previously believed die of sepsis worldwide—and a disproportionately high number of them are children.

See how smart skins for buildings that react to environmental cues like heat or light could make the structures far more energy efficient.

"...the ones causing the most damage are loose groups of individuals who come together to do one thing, do it really well... then disappear."

Physicists have put a limit on the warmth—and therefore the mass—of dark matter, the mysterious substance that makes up about a quarter of our universe.

The size of the brain's hippocampus doesn't always matter for memory in older adults. New research clarifies why.

Infants who spend less time moving in their first year may have greater risk of obesity later. "Even in infancy it's important for children to move freely."

"The basic records being kept are annual reports on the number of deaths from drug overdose. But that's only part of the picture."

Fast food advertisements on TV can prime teen brains to make unhealthy food choices, even when those ads are for salads and smoothies, new research shows.