dopamine

Dopamine is a part of our brain's survival mechanism. It is also part of why sugary foods and social media hook kids. The latest neuroscience can help parents help their kids manage behavior.

Psychiatrist Anna Lembke's new book explores the brain's connection between pleasure and pain. It also helps explain addictions — not just to drugs and alcohol, but also to food, sex and smartphones.

Mothers with the "sensitive" version of a gene became more likely to strike or scream at their children during the Great Recession, researchers say. But as a complete economic collapse became less likely, the moms relaxed. Those with the "insensitive" version didn't change their behavior.