Most Americans know the legend of Johnny Appleseed. In school—and via a famous Disney cartoon—we learned that he wandered barefoot through the western territories in America’s pioneer days, scattering ...

Why do decision-makers at work really choose one person for a role over another? What actually makes them trust someone's judgment? How do they decide in practice who to tap for important ...

I’ve talked to a former chief of the F.B.I.’s Crisis Negotiation Unit about how to defuse tension during family holidays. Emergency-room doctors about how to avoid accidents. A neuroscientist who ...

When we talk about our personality, many of us treat it as a fixed, unchanging part of us. But the truth is our personality can evolve and often does, even without us deliberately trying. For example, ...