Celiac disease is thought to affect roughly one percent of the population. The good news: it can be treated by quitting gluten. The bad news: many celiac patients haven't been diagnosed. The weird news: millions of people without celiac disease have quit gluten – which may be a big mistake.

305. The Demonization of Gluten

Freakonomics co-author Stephen J. Dubner uncovers the hidden side of everything. Why is it safer to fly in an airplane than drive a car? How do we decide whom to marry? Why is the media so full of bad news? Also: things you never knew you wanted to know about wolves, bananas, pollution, search engines, and the quirks of human behavior.

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Justin Trudeau, facing record-low approval numbers, is doubling down on his progressive agenda. But he is so upbeat (and Canada-polite) that it’s easy to miss just how radical his vision is. Can he make it work?

585. A Social Activist in Prime Minister’s Clothing

So you want to help people? That’s great — but beware the law of unintended consequences. Three stories from the modern workplace.

584. How to Pave the Road to Hell

The psychologist Daniel Kahneman — a Nobel laureate and the author of “Thinking, Fast and Slow” — recently died at age 90. Along with his collaborator Amos Tversky, he changed how we all think about decision-making. The journalist Michael Lewis told the Kahneman-Tversky story in a 2016 book called "The Undoing Project." In this episode, Lewis explains why they had such a profound influence.

Extra: The Men Who Started a Thinking Revolution (Update)

People who are good at their jobs routinely get promoted into bigger jobs they’re bad at. We explain why firms keep producing incompetent managers — and why that’s unlikely to change.

Why Are There So Many Bad Bosses? (Update)

Fareed Zakaria says yes. But it’s not just political revolution — it’s economic, technological, even emotional. He doesn’t offer easy solutions but he does offer some hope.

305. The Demonization of Gluten

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