So, so, so skin.

Keep your good going and breeze through busy days with mullah lights.

Now with a new thicker recipe with Vitamin B6 and Vitamin D. Or go on then? Mull a light, get the good going. You're going to. Hello, welcome to the naked scientist with me, Chris Smith and also with Cat Arney.

Now are you sitting comfortably? Well you might

want to stand up because we'll be hearing this week why in health terms sitting is

the new smoking. We're also taking a look at the science behind weight loss and why

shedding those extra pounds is so difficult. And you'll be pleased to hear that I am

indeed standing up and will remain so for this entire show. Now meanwhile coming up in the news why colds really do

prefer the cold, why most of the world's fossil fuels need to stay in the ground

if we're going to meet climate change targets and home from home how scientists have discovered Earth's twin

deep in outer space.

The Naked Scientists Podcast is powered by UKfast.co.co. UK.

It was dismissed by doctors for decades as a myth, but now scientists have proved that the winter

weather really can increase your chances of catching a cold.

Yeah University's Icko Iwasaki has found that when the cells in our

noses are infected with viruses they sound a chemical alarm to help

other cells to fend off infection.

But at lower temperatures this doesn't work so well, giving an attacking virus an advantage and partly explaining

why colds are much more common in winter.

It's been known since the 1960s that the common cold virus or the rhinovirus replicates at a cooler temperature

found in the nose. However it was not known why the virus replicates better in

this cooler temperature.

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