There are some things you should always check, like the hygiene rating on your local takeaway,

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The other thing you should check is your Experian credit report, especially if you're looking to borrow money.

It lets you understand what lenders see, so you can increase your chances of getting the best deals.

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Let Curiosity be your guide as Scientific American Travel takes you on a journey to faraway ports.

For information, go to scientificamerican.com slash travel.

Welcome to the Scientific American podcast, Science Talk, posted on May 29, 2012.

I'm Steve Murski.

On this episode, he knew that he had been infected in 1978.

He felt entirely well. He'd never taken any anti-HIV medications. And essentially was asking me, why am I still alive? That's Bruce

Walker. He's Professor of Medicine at Harvard Medical School and director of the Raygonne Institute,

a joint effort of the Massachusetts General Hospital,

MIT, and Harvard. And he's the author of an article in the July issue of Scientific American

magazine called Controlling HIV, about rare individuals who never develop AIDS after being infected

by HIV. And what they can teach medical researchers that might benefit the

millions of other people who are at risk for AIDS after an HIV infection.

We spoke by phone.

Dr. Walker, great to talk to you today.

Nice to talk to you.

So there's a fascinating article in our July issue about the fact that there are

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