Hello and welcome to Car Talk from National Public Radio with us Click and Clack the Tappert Brothers,

and we're broadcasting this week from the Eureka Division here at Car Talk Plaza.

You know, I was reading this article recently, and all of a sudden I said, Eureka, I had an insight

into my brother.

Really?

Okay.

This article came to us from MedTech, which is an online news area.

Yeah.

And I'll just read it.

I'll read a few excerpts from it.

Researchers found that a small tumor-like mass called a hypothalmic hamatoma can, for some people, lead to an irrepressible desire to laugh and other behavioral problems.

The study looked at three patients who have small collection of neurons located on the brain's

hypothalamus, which cause mild epileptic seizures and a must- laugh feeling for much of their

lives. Really?

Yeah, yeah, no.

Where there is a lesion like this, the patients will laugh.

They have laughing attacks sometimes from birth, said Dr. Frederick Anderman, a professor of neurology at McGill University in Canada.

Eventually, it becomes clear that this is not normal.

Oh.

As years go by, they may fall and hurt themselves

or lose ground intellectually or behaviorally.

So I have hypodalmic hamartoma.

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