A conversation with former Major League Baseball player and current ESPN analyst Mark Teixeira, recorded for the Freakonomics Radio series “The Hidden Side of Sports.”

Great athletes aren’t just great at the physical stuff. They’ve also learned how to handle pressure, overcome fear, and stay focused. Here’s the good news: you don’t have to be an athlete to use what they know. (Ep. 4 of “The Hidden Side of Sports” series.)

Jim Yong Kim has an unorthodox background for a World Bank president — and his reign has been just as unorthodox. He has just announced he’s stepping down, well before his term is over; we recorded this interview with him in 2015.

In the American Dream sweepstakes, Andrew Yang was a pretty big winner. But for every winner, he came to realize, there are thousands upon thousands of losers — a “war on normal people,” he calls it. Here’s what he plans to do about it.

The U.N.’s World Happiness Report — created to curtail our unhealthy obsession with G.D.P. — is dominated every year by the Nordic countries. We head to Denmark to learn the secrets of this happiness epidemic (and to see if we should steal them).

Games are as old as civilization itself, and some people think they have huge social value regardless of whether you win or lose. Tom Whipple is not one of those people. That’s why he consulted an army of preposterously overqualified experts to find the secret to winning any game.

You wouldn’t think you could win a Nobel Prize for showing that humans tend to make irrational decisions. But that’s what Richard Thaler has done. The founder of behavioral economics describes his unlikely route to success; his reputation for being lazy; and his efforts to fix the world — one nudge at a time.

Our co-host is comedian Christian Finnegan, and we learn: the difference between danger and fear; the role of clouds in climate change; and why (and when) politicians are bad at math. Washington Post columnist Alexandra Petri is our real-time fact-checker.

Celebrity chef Alex Guarnaschelli joins us to co-host an evening of delicious fact-finding: where a trillion oysters went, whether a soda tax can work, and how beer helped build an empire. Washington Post columnist Alexandra Petri is our real-time fact-checker.

We learn how to be less impatient, how to tell fake news from real, and the simple trick that nurses used to make better predictions than doctors. Journalist Manoush Zomorodi co-hosts; our real-time fact-checker is the author and humorist A.J. Jacobs.