All engine running.

I'm so genius.

Get this.

Welcome.

This is the show where we bring science.

What that essentially means is discovery is

the classes, research, technology, unbelievable.

Without further ado, this is the naked scientist.

Hello, welcome to this week's naked scientist.

This is the show where we bring you the latest breakthroughs in science, technology and medicine.

I'm Chris Smith.

And coming up, the new form of insulin that switches itself off before blood sugar levels fall

too low, also scientists suss out the origins of the meteors

that most often fall to earth and why the longest live patch of snow in the

Scottish Highlands finally looks set to melt away.

From Cambridge University's Institute of Continuing Education,

this is the Naked Scientists. We begin this week with news that scientists have engineered a chemical switch into the insulin used to treat people with diabetes.

This enables the hormone to sense the blood sugar level and turn off the insulin signal

if blood glucose drops too low.

It could work as a way of preventing life-threatening hypos that diabetics run the risk of

developing if they inject too much insulin or don't consume enough sugar.

To find out more, we put in a call to David Sachs from the National Institutes of Health.

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