James O'Brien's Mystery Hour James O'Brien's Mystery Hour

Smallest living thing in the human body?

Aug 27, 2026 · 49m

Summary

James O'Brien hosts Mystery Hour, where listeners pose questions and others provide answers. Topics include why chefs wear checkered trousers, the texture difference between Whispers and Flakes, and the evolutionary purpose of crying. Callers also address where drought water goes, why mice gnaw wires, and why smells cannot be recalled. O'Brien shares trivia about Frank Sinatra’s contractual obligation for the role in Die Hard and mocks Kemi Badenoch’s political gaffs.

Topics discussed

Introduction to Mystery Hour and rules Why chefs wear checkered trousers Why Whispers taste different from Twirls Where is all the water during a drought? Die Hard trivia: John McClane's contractual obligation The smallest living thing inside the human body What happened to Shire horses? What causes brain freeze? The evolutionary purpose of crying Shire horses still working at breweries Can you recall a smell without smelling it? Can a man swim fast enough to breach water? Brain freeze explanation via nervous system Why do mice and rats gnaw on wires? Kemi Badenoch political gaffe story Answer to drought question: The water cycle Synesthesia and remembering smells in whiskey Mouse teeth growth and smallest living things
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