Ingrid Dahl

Most moral verdicts arrive as gut feelings, with the reasons recruited afterward. Here is what moral psychology has learned about where those intuitions mislead us — from trolley problems to the identified-victim effect — and how to correct for it.

Ego depletion, power posing, elderly priming: famous psychology findings collapsed when rerun. How incentives breed false positives, and which reforms help.

Teenagers with an audience, traders on a winning streak and sailors under fire fail in similar ways, and the fixes that work are built into systems.

Low-grade civil servants in Whitehall died at three times the rate of their bosses, and smoking, cholesterol and blood pressure explained only a fraction of it. Here is how chronic stress, and above all a lack of control, works its way into the arteries, the immune system, the brain and even our chromosomes.

In a London lab, people were more stressed facing a 50/50 chance of an electric shock than a certain one. The finding reveals what the stress response really tracks — and why modern life, with its endless open questions, keeps it switched on.

Close to half of what we do runs on habit, cued by context. Ego depletion largely failed to replicate; if-then plans and redesigned spaces change behavior.

Craigslist made newspapers' scarcity worthless. How value moved from content makers to the platforms that organize attention, and why regulators miss the machine.

Motivated-numeracy experiments, Tetlock's forecasters and psychology's replication crisis show how intelligence and expertise help people defend false beliefs.

India guards North Sentinel Island; Brazil tracks more than 100 isolated groups under a no-contact policy. Nobody has asked the people concerned — and miners and missionaries are not waiting for an answer.

A rape victim was certain, and an innocent man lost a decade. Memory research explains why: recall can rebuild a memory, and confidence can outrun accuracy.