Chatter

Ethan Kross, a psychologist who studies introspection, examines the constant inner monologue everyone runs and focuses specifically on what happens when it turns against itself — replaying anxieties, rehashing conflicts, and spiraling into rumination that Kross calls "chatter." Rather than treating this inner voice as something to silence entirely, since the capacity for self-talk also carries real cognitive benefits, he identifies specific, testable techniques that shift chatter from destructive looping into something more manageable, drawing heavily on his own lab's experiments alongside a wide range of psychological and even physiological research.

The book matters because it takes seriously something almost everyone experiences but rarely examines systematically — the difference between inner speech that helps you plan and reflect versus inner speech that traps you in anxious repetition — and it backs its advice with controlled studies rather than generic self-help intuition. Kross's central move is distinguishing tools that actually work, like gaining psychological distance from your own perspective, from tools that feel intuitively helpful but often backfire, like venting at length to others.

Who should read it

Anyone who struggles with overthinking, rumination, or a harshly critical inner voice, and who wants specific, research-backed techniques rather than vague reassurance, will find practical value here.

About the author

Ethan Kross is a professor of psychology and management at the University of Michigan and director of its Emotion and Self Control Laboratory, where much of the book's research originates.