Meta-analysis finds that over 1/3 of American children have had two or more substantial adverse childhood experiences, compared to fewer than 1 out of 5 children in Europe.
Team of Earth scientists analyze 66 million year old crater in Yucatan to propose what unfolded during the first day of the last major mass extinction event.
When hungry, people may tend to be impatient and more likely to settle for a small reward unrelated to food that arrives sooner, rather than delaying gratification for a larger one promised at a later date.
Disciplining children through "time outs" doesn't increase their anxiety or aggressive behavior, nor parents' relationships with them, though physical punishment does.
Based on finding that Neanderthals appear to have had ear canals similarly shaped to that of today's infants, researchers suggest that the hominids may have died off due to bacterial infections.
