Understanding the human body is a team effort. That's where the Yachtel group comes in.

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.jp. That's Y-A-K-U-L-T.C-O.jp. When it comes to a guide for your gut, count on Yacolt.

This is Scientific American's 60-second science. I'm Christopher in Taliatta.

When you burn your tongue or cut your cheek, the pain can be intense.

But the wound heals pretty quickly, compared to injuries elsewhere.

That's because all the factors needed to repair a wound are ready to jump into action in oral tissue.

Because a new study shows that proteins called transcription factors, which

control all those healing elements, are present at greater levels in the mouth.

You can think of those controlling proteins as theater directors, and the healing factors

are the actors, waiting in the wings.

They are ready to go right on the sidelines in the oral epithelia. So the director

says, come ahead, and then they're just right on stage. Maria Marasso, a senior investigator at the

National Institutes of Health. She says that's not the case in regular skin tissue. They have the

capability of coming on stage, but they're nowhere close. So you have to go through that step of getting

them in the stage to be able to go ahead with a function. Which delays healing. It might be

difficult to have the play finish on time and according to the script. The study is in the journal

Science Translational Medicine. Marasso and her colleagues also tested this idea by genetically engineering mice to have more

of those factors, the directors, in their regular skin tissue.

And sure enough, those mice had significantly faster skin wound healing than did control

...