Punch, a monkey that went viral after he was abandoned by his mother in a Japanese zoo, is reminiscent of a foundational attachment theory experiment ...

Scientists have long suspected that hormones quietly tune how the brain learns, but the idea of a single, hidden “switch” has usually been more metaphor than map. What is emerging from decades of ...

Imagine you're a researcher studying how sleep affects mood. To explore the connection, you would look at two key "variables": sleep (how much someone gets) and mood (how happy or irritable they feel) ...