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Science and that is the same physics, medicine, nature, or space, time, brain, life, the universe. the actors into brain scanners to the physicists working out how a giraffe would balance on a tight rope.

We are exploring the science that brings animations to the big screen.

Plus why we're more prone to viral infections when we're jet-lagged, how a common technique to prevent

premature births could actually cause them, and were Neanderthals killed off by their own campfires.

I'm Georgia Mills.

And I'm Chris Smith, and you're listening to the Naked Scientists.

The Naked Scientists podcast is powered by UKfast.co.uk. Many people complain that going on holiday causes them to catch a cold. I'm one of them and now we might know why. Now vacation colds and holiday influenza

are perennial mones. They're made by travellers who say they are steadfastly healthy when they're

working away in the office, but as soon as they fly abroad and hit the beach they immediately

succumb to the local circulating lurgy. Now the reason, Cambridge scientists are saying,

is it could be that disruption to your body clock makes infecting viruses grow up to 10 times better

in your cells. One of the discoverers is AC ready. So ACP, what were you doing and how did you

stumble on this? Well, we kind of figured that viruses are unusual in terms of microorganisms that infect the body

because they actually need our cells in order to replicate and therefore because every single

cell in the body has this biological or

circadian 24 hour clock within it we thought that there might be particular

times a day when all of the things that the virus requires would be

you know increased and other times when they'd be decreased.

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