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This is fresh air.

I'm Terry Gross.

When you're in pain, it can be hard to think about anything else. My guest, neurosurgeon, and CNN chief medical correspondent, Sanjay Gupta,

writes that over the past few decades, we've learned more than ever about the true nature

of pain. We better understand what causes it, what may best relieve it,

and what we can do to minimize or even eliminate certain types of pain. Many of those life-changing

insights have not yet been made easily available to the public. His new book is an attempt to change that.

It's called It Doesn't Have to Hurt. Dr. Gupta is also the host of the

podcast Chasing Life. He's an associate professor of neurosurgery at the Emory University Hospital and is the

author of four previous bestsellers. He's won several Emmy Awards as well as two DuPont Columbia Awards,

the most recent one for his reporting on the

medical use of marijuana. A subject we'll talk about a little later in the interview. He also

contributed to CNN's Peabody Award-winning coverage of the devastation of Hurricane Katrina 20 years

ago. Dr. Gupta, welcome back to fresh air. Thank you. What a pleasure.

I always enjoy our conversations.

Thank you for having me.

...