
The door was open. One low barrier, one step, and freedom on the other side. They didn’t take it — most didn’t even look for it. In 1967 a psychologist stumbled onto the hidden mechanism behind one of the most misread human behaviors there is, and it has almost nothing to do with willpower. Read more

In just 25 seconds of ordinary speech, a machine learning algorithm can now detect signs of depression you haven’t consciously registered yet. Not from what you say — from how you say it. This is AI detecting depression early, and it raises a question medicine isn’t ready to answer: who owns the flag? Read more

You assume your brain is in charge of how you feel. But a growing body of research suggests the 100 trillion microorganisms living in your gut are sending signals upward — signals that shape your anxiety, your stress tolerance, and your emotional baseline in ways the brain simply inherits. Read more