
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