12. “This Didn't End the Way It’s Supposed to End.”

The N.B.A. superstar Chris Bosh was still competing at the highest level when a blood clot abruptly ended his career. In his new book, Letters to a Young Athlete, Bosh covers the highlights and the struggles. In this installment of the Freakonomics Radio Book Club, he talks with guest host Angela Duckworth.

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