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Tonight, on this special edition of 60 minutes presents, new frontiers in medicine.

I'm excited.

We have been following a cutting-edge clinical trial at the National Institutes of Health

using gene therapy on a brutally painful disease, sickle selenemia.

You'll hear the surprising results that one day may lead to cures for thousands of other diseases.

To see that emerging, not just as hoped for advances, but real data showing cures for people.

You just used the curing word.

You're willing to say that?

This looks like a cure.

I start seeing the colors and the geometric designs and then boom.

Visions began.

Visions brought about by the powerful psychedelic drug, psilocybin administered by scientists aimed at helping people suffering from depression, anxiety and addiction.

Do you ever have a day where you wake up and you're like, man, I wish I could have a vodka right now.

Not at all.

Which is the craziest thing because that was my favorite thing to do.

The image on the left shows connections within the brain before psilocybin, on the right after.

Student debt is a crisis.

Americans owe $1.5 trillion.

The burden from medical students is especially heavy.

But now one of the country's top schools has come up with a radical solution.

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