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Hello, I'm Professor Brian Cox, and I'm here to explain science.

And I am Ruben Inz, and I am here to interrupt him every time you go,

I've got absolutely no idea what he's talking about.

I mean, I'm sure that man understands it, but I have not got a clue.

Today, we're talking about something very close to our heart,

which is, of course, physical exercise.

Yeah, actually, right.

A new you as a crowd would then go,

that was the thing we hated most at school.

Don't tell us there was science in it.

Well, that is what we're going to talk about.

In fact, it is genuinely true that you, I believe it, because like Brian,

he loves human endurance.

I have a regular listener.

There's no a bag of gymnastic floor badge,

which means that I was able at primary school to jump without falling over

and also to do a forward roll.

So both of us are very much at the cutting edge of physical stealth.

Tonight.

We're exploring the science of human endurance.

How fast can we run?

...