Discover why some puzzles stump supersmart AIs but are easy for humans, what this reveals about the quest for true artificial ...

Replication research can take the temperature on how accurate science in a given field is, but research replication is easier ...

As for why cortisol varies throughout the day: "Cortisol is very important in helping a person transition from sleep to wakefulness," Zalzala explained. "This triggers a 'morning cortisol surge' -- a ...

A blood test that can be administered in the first trimester of pregnancy identified women at risk for developing preeclampsia 5 months before symptom onset, data show. Researchers said the test — a ...

Gaining a better understanding of how romantic relationships develop over time is key to helping couples maintain a ...